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Finding the Fourth Proportional to 354,630.60, 532,140.30 and 144,419.40

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Solution

The fourth proportional to 354,630.60, 532,140.30 and 144,419.40 is: 216,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,630.60 : 532,140.30 = 144,419.40 : x
  2. Step 2: Convert to fraction form
    354,630.60/532,140.30 = 144,419.40/x
  3. Step 3: Cross multiply
    354,630.60x = 532,140.30 × 144,419.40
  4. Step 4: Simplify right side
    354,630.60x = 76,851,382,841.82
  5. Step 5: Solve for x
    x = 76,851,382,841.82/354,630.60
  6. Step 6: Final answer
    x = 216,708.27

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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.