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Finding the Fourth Proportional to 354,254.04, 531,240.12 and 129,563.28

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Solution

The fourth proportional to 354,254.04, 531,240.12 and 129,563.28 is: 194,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,254.04 : 531,240.12 = 129,563.28 : x
  2. Step 2: Convert to fraction form
    354,254.04/531,240.12 = 129,563.28/x
  3. Step 3: Cross multiply
    354,254.04x = 531,240.12 × 129,563.28
  4. Step 4: Simplify right side
    354,254.04x = 68,829,212,414.79
  5. Step 5: Solve for x
    x = 68,829,212,414.79/354,254.04
  6. Step 6: Final answer
    x = 194,293.37

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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.