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Finding the Fourth Proportional to 253,982.40, 355,108.80 and 253,982.40

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Solution

The fourth proportional to 253,982.40, 355,108.80 and 253,982.40 is: 355,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,982.40 : 355,108.80 = 253,982.40 : x
  2. Step 2: Convert to fraction form
    253,982.40/355,108.80 = 253,982.40/x
  3. Step 3: Cross multiply
    253,982.40x = 355,108.80 × 253,982.40
  4. Step 4: Simplify right side
    253,982.40x = 90,191,385,285.12
  5. Step 5: Solve for x
    x = 90,191,385,285.12/253,982.40
  6. Step 6: Final answer
    x = 355,108.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.