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Finding the Fourth Proportional to 284,526.70, 392,642.23 and 155,462.41

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Solution

The fourth proportional to 284,526.70, 392,642.23 and 155,462.41 is: 214,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,526.70 : 392,642.23 = 155,462.41 : x
  2. Step 2: Convert to fraction form
    284,526.70/392,642.23 = 155,462.41/x
  3. Step 3: Cross multiply
    284,526.70x = 392,642.23 × 155,462.41
  4. Step 4: Simplify right side
    284,526.70x = 61,041,107,343.57
  5. Step 5: Solve for x
    x = 61,041,107,343.57/284,526.70
  6. Step 6: Final answer
    x = 214,535.60

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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.