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Finding the Fourth Proportional to 247,324, 341,307.15 and 139,891.72

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Solution

The fourth proportional to 247,324, 341,307.15 and 139,891.72 is: 193,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,324 : 341,307.15 = 139,891.72 : x
  2. Step 2: Convert to fraction form
    247,324/341,307.15 = 139,891.72/x
  3. Step 3: Cross multiply
    247,324x = 341,307.15 × 139,891.72
  4. Step 4: Simplify right side
    247,324x = 47,746,044,261.80
  5. Step 5: Solve for x
    x = 47,746,044,261.80/247,324
  6. Step 6: Final answer
    x = 193,050.59

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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.