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Finding the Fourth Proportional to 144,613.44, 216,891 and 39,418.74

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Solution

The fourth proportional to 144,613.44, 216,891 and 39,418.74 is: 59,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,613.44 : 216,891 = 39,418.74 : x
  2. Step 2: Convert to fraction form
    144,613.44/216,891 = 39,418.74/x
  3. Step 3: Cross multiply
    144,613.44x = 216,891 × 39,418.74
  4. Step 4: Simplify right side
    144,613.44x = 8,549,569,937.34
  5. Step 5: Solve for x
    x = 8,549,569,937.34/144,613.44
  6. Step 6: Final answer
    x = 59,120.16

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1.5x scale

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.