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Finding the Fourth Proportional to 318,555.92, 439,508.22 and 180,712.22

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Solution

The fourth proportional to 318,555.92, 439,508.22 and 180,712.22 is: 249,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,555.92 : 439,508.22 = 180,712.22 : x
  2. Step 2: Convert to fraction form
    318,555.92/439,508.22 = 180,712.22/x
  3. Step 3: Cross multiply
    318,555.92x = 439,508.22 × 180,712.22
  4. Step 4: Simplify right side
    318,555.92x = 79,424,503,946.91
  5. Step 5: Solve for x
    x = 79,424,503,946.91/318,555.92
  6. Step 6: Final answer
    x = 249,326.72

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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.