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Finding the Fourth Proportional to 145,599.88, 218,375.52 and 40,429.48

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Solution

The fourth proportional to 145,599.88, 218,375.52 and 40,429.48 is: 60,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,599.88 : 218,375.52 = 40,429.48 : x
  2. Step 2: Convert to fraction form
    145,599.88/218,375.52 = 40,429.48/x
  3. Step 3: Cross multiply
    145,599.88x = 218,375.52 × 40,429.48
  4. Step 4: Simplify right side
    145,599.88x = 8,828,808,718.33
  5. Step 5: Solve for x
    x = 8,828,808,718.33/145,599.88
  6. Step 6: Final answer
    x = 60,637.47

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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.