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Finding the Fourth Proportional to 478,577.16, 717,687 and 158,670.36

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Solution

The fourth proportional to 478,577.16, 717,687 and 158,670.36 is: 237,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,577.16 : 717,687 = 158,670.36 : x
  2. Step 2: Convert to fraction form
    478,577.16/717,687 = 158,670.36/x
  3. Step 3: Cross multiply
    478,577.16x = 717,687 × 158,670.36
  4. Step 4: Simplify right side
    478,577.16x = 113,875,654,657.32
  5. Step 5: Solve for x
    x = 113,875,654,657.32/478,577.16
  6. Step 6: Final answer
    x = 237,946.28

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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.