Home / 284,748.72-392,918.04-157,426.80

Finding the Fourth Proportional to 284,748.72, 392,918.04 and 157,426.80

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Solution

The fourth proportional to 284,748.72, 392,918.04 and 157,426.80 is: 217,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,748.72 : 392,918.04 = 157,426.80 : x
  2. Step 2: Convert to fraction form
    284,748.72/392,918.04 = 157,426.80/x
  3. Step 3: Cross multiply
    284,748.72x = 392,918.04 × 157,426.80
  4. Step 4: Simplify right side
    284,748.72x = 61,855,829,699.47
  5. Step 5: Solve for x
    x = 61,855,829,699.47/284,748.72
  6. Step 6: Final answer
    x = 217,229.53

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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.