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Finding the Fourth Proportional to 292,988.50, 404,312.90 and 165,666.76

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Solution

The fourth proportional to 292,988.50, 404,312.90 and 165,666.76 is: 228,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,988.50 : 404,312.90 = 165,666.76 : x
  2. Step 2: Convert to fraction form
    292,988.50/404,312.90 = 165,666.76/x
  3. Step 3: Cross multiply
    292,988.50x = 404,312.90 × 165,666.76
  4. Step 4: Simplify right side
    292,988.50x = 66,981,208,169.20
  5. Step 5: Solve for x
    x = 66,981,208,169.20/292,988.50
  6. Step 6: Final answer
    x = 228,613.78

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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.