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Finding the Fourth Proportional to 369,069.60, 552,292.20 and 256,220.40

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Solution

The fourth proportional to 369,069.60, 552,292.20 and 256,220.40 is: 383,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,069.60 : 552,292.20 = 256,220.40 : x
  2. Step 2: Convert to fraction form
    369,069.60/552,292.20 = 256,220.40/x
  3. Step 3: Cross multiply
    369,069.60x = 552,292.20 × 256,220.40
  4. Step 4: Simplify right side
    369,069.60x = 141,508,528,400.88
  5. Step 5: Solve for x
    x = 141,508,528,400.88/369,069.60
  6. Step 6: Final answer
    x = 383,419.63

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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.