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Finding the Fourth Proportional to 478,482.82, 717,864.56 and 141,532.34

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Solution

The fourth proportional to 478,482.82, 717,864.56 and 141,532.34 is: 212,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,482.82 : 717,864.56 = 141,532.34 : x
  2. Step 2: Convert to fraction form
    478,482.82/717,864.56 = 141,532.34/x
  3. Step 3: Cross multiply
    478,482.82x = 717,864.56 × 141,532.34
  4. Step 4: Simplify right side
    478,482.82x = 101,601,050,979.87
  5. Step 5: Solve for x
    x = 101,601,050,979.87/478,482.82
  6. Step 6: Final answer
    x = 212,340.02

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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.