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Finding the Fourth Proportional to 212,410.87, 318,670.98 and 62,645.11

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Solution

The fourth proportional to 212,410.87, 318,670.98 and 62,645.11 is: 93,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,410.87 : 318,670.98 = 62,645.11 : x
  2. Step 2: Convert to fraction form
    212,410.87/318,670.98 = 62,645.11/x
  3. Step 3: Cross multiply
    212,410.87x = 318,670.98 × 62,645.11
  4. Step 4: Simplify right side
    212,410.87x = 19,963,178,595.91
  5. Step 5: Solve for x
    x = 19,963,178,595.91/212,410.87
  6. Step 6: Final answer
    x = 93,983.79

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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.