Home / 247,044.16-340,934.40-139,618.72

Finding the Fourth Proportional to 247,044.16, 340,934.40 and 139,618.72

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Solution

The fourth proportional to 247,044.16, 340,934.40 and 139,618.72 is: 192,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,044.16 : 340,934.40 = 139,618.72 : x
  2. Step 2: Convert to fraction form
    247,044.16/340,934.40 = 139,618.72/x
  3. Step 3: Cross multiply
    247,044.16x = 340,934.40 × 139,618.72
  4. Step 4: Simplify right side
    247,044.16x = 47,600,824,531.97
  5. Step 5: Solve for x
    x = 47,600,824,531.97/247,044.16
  6. Step 6: Final answer
    x = 192,681.44

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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.