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Finding the Fourth Proportional to 355,374.20, 532,866.90 and 144,774.20

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Solution

The fourth proportional to 355,374.20, 532,866.90 and 144,774.20 is: 217,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,374.20 : 532,866.90 = 144,774.20 : x
  2. Step 2: Convert to fraction form
    355,374.20/532,866.90 = 144,774.20/x
  3. Step 3: Cross multiply
    355,374.20x = 532,866.90 × 144,774.20
  4. Step 4: Simplify right side
    355,374.20x = 77,145,379,153.98
  5. Step 5: Solve for x
    x = 77,145,379,153.98/355,374.20
  6. Step 6: Final answer
    x = 217,082.10

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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.