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Finding the Fourth Proportional to 338,649.17, 508,001.40 and 170,082.80

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Solution

The fourth proportional to 338,649.17, 508,001.40 and 170,082.80 is: 255,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,649.17 : 508,001.40 = 170,082.80 : x
  2. Step 2: Convert to fraction form
    338,649.17/508,001.40 = 170,082.80/x
  3. Step 3: Cross multiply
    338,649.17x = 508,001.40 × 170,082.80
  4. Step 4: Simplify right side
    338,649.17x = 86,402,300,515.92
  5. Step 5: Solve for x
    x = 86,402,300,515.92/338,649.17
  6. Step 6: Final answer
    x = 255,138.08

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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.