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Finding the Fourth Proportional to 478,233.54, 717,444.90 and 136,680.03

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Solution

The fourth proportional to 478,233.54, 717,444.90 and 136,680.03 is: 205,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,233.54 : 717,444.90 = 136,680.03 : x
  2. Step 2: Convert to fraction form
    478,233.54/717,444.90 = 136,680.03/x
  3. Step 3: Cross multiply
    478,233.54x = 717,444.90 × 136,680.03
  4. Step 4: Simplify right side
    478,233.54x = 98,060,390,455.35
  5. Step 5: Solve for x
    x = 98,060,390,455.35/478,233.54
  6. Step 6: Final answer
    x = 205,047.08

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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.