Home / 393,223.28-542,706.38-240,349.55

Finding the Fourth Proportional to 393,223.28, 542,706.38 and 240,349.55

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Solution

The fourth proportional to 393,223.28, 542,706.38 and 240,349.55 is: 331,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,223.28 : 542,706.38 = 240,349.55 : x
  2. Step 2: Convert to fraction form
    393,223.28/542,706.38 = 240,349.55/x
  3. Step 3: Cross multiply
    393,223.28x = 542,706.38 × 240,349.55
  4. Step 4: Simplify right side
    393,223.28x = 130,439,230,299.85
  5. Step 5: Solve for x
    x = 130,439,230,299.85/393,223.28
  6. Step 6: Final answer
    x = 331,717.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.