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Finding the Fourth Proportional to 373,345.70, 560,018.55 and 213,257.30

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Solution

The fourth proportional to 373,345.70, 560,018.55 and 213,257.30 is: 319,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,345.70 : 560,018.55 = 213,257.30 : x
  2. Step 2: Convert to fraction form
    373,345.70/560,018.55 = 213,257.30/x
  3. Step 3: Cross multiply
    373,345.70x = 560,018.55 × 213,257.30
  4. Step 4: Simplify right side
    373,345.70x = 119,428,043,922.92
  5. Step 5: Solve for x
    x = 119,428,043,922.92/373,345.70
  6. Step 6: Final answer
    x = 319,885.95

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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.