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Finding the Fourth Proportional to 272,169.90, 408,254.85 and 242,621.10

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Solution

The fourth proportional to 272,169.90, 408,254.85 and 242,621.10 is: 363,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,169.90 : 408,254.85 = 242,621.10 : x
  2. Step 2: Convert to fraction form
    272,169.90/408,254.85 = 242,621.10/x
  3. Step 3: Cross multiply
    272,169.90x = 408,254.85 × 242,621.10
  4. Step 4: Simplify right side
    272,169.90x = 99,051,240,787.34
  5. Step 5: Solve for x
    x = 99,051,240,787.34/272,169.90
  6. Step 6: Final answer
    x = 363,931.65

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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.