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Finding the Fourth Proportional to 315,842.88, 473,444.72 and 136,045.52

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Solution

The fourth proportional to 315,842.88, 473,444.72 and 136,045.52 is: 203,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,842.88 : 473,444.72 = 136,045.52 : x
  2. Step 2: Convert to fraction form
    315,842.88/473,444.72 = 136,045.52/x
  3. Step 3: Cross multiply
    315,842.88x = 473,444.72 × 136,045.52
  4. Step 4: Simplify right side
    315,842.88x = 64,410,033,123.65
  5. Step 5: Solve for x
    x = 64,410,033,123.65/315,842.88
  6. Step 6: Final answer
    x = 203,930.62

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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.