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Finding the Fourth Proportional to 366,925.20, 550,387.80 and 353,639.18

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Solution

The fourth proportional to 366,925.20, 550,387.80 and 353,639.18 is: 530,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,925.20 : 550,387.80 = 353,639.18 : x
  2. Step 2: Convert to fraction form
    366,925.20/550,387.80 = 353,639.18/x
  3. Step 3: Cross multiply
    366,925.20x = 550,387.80 × 353,639.18
  4. Step 4: Simplify right side
    366,925.20x = 194,638,687,522.07
  5. Step 5: Solve for x
    x = 194,638,687,522.07/366,925.20
  6. Step 6: Final answer
    x = 530,458.76

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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.