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Finding the Fourth Proportional to 508,328.61, 762,498.38 and 153,345.71

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Solution

The fourth proportional to 508,328.61, 762,498.38 and 153,345.71 is: 230,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,328.61 : 762,498.38 = 153,345.71 : x
  2. Step 2: Convert to fraction form
    508,328.61/762,498.38 = 153,345.71/x
  3. Step 3: Cross multiply
    508,328.61x = 762,498.38 × 153,345.71
  4. Step 4: Simplify right side
    508,328.61x = 116,925,851,642.46
  5. Step 5: Solve for x
    x = 116,925,851,642.46/508,328.61
  6. Step 6: Final answer
    x = 230,020.21

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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.