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Finding the Fourth Proportional to 253,741,333.60, 380,612,000.40 and 240,640,328.80

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Solution

The fourth proportional to 253,741,333.60, 380,612,000.40 and 240,640,328.80 is: 360,960,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,741,333.60 : 380,612,000.40 = 240,640,328.80 : x
  2. Step 2: Convert to fraction form
    253,741,333.60/380,612,000.40 = 240,640,328.80/x
  3. Step 3: Cross multiply
    253,741,333.60x = 380,612,000.40 × 240,640,328.80
  4. Step 4: Simplify right side
    253,741,333.60x = 91,590,596,921,481,728
  5. Step 5: Solve for x
    x = 91,590,596,921,481,728/253,741,333.60
  6. Step 6: Final answer
    x = 360,960,493.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.