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Finding the Fourth Proportional to 258,001.80, 386,873.10 and 117,601.80

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Solution

The fourth proportional to 258,001.80, 386,873.10 and 117,601.80 is: 176,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,001.80 : 386,873.10 = 117,601.80 : x
  2. Step 2: Convert to fraction form
    258,001.80/386,873.10 = 117,601.80/x
  3. Step 3: Cross multiply
    258,001.80x = 386,873.10 × 117,601.80
  4. Step 4: Simplify right side
    258,001.80x = 45,496,972,931.58
  5. Step 5: Solve for x
    x = 45,496,972,931.58/258,001.80
  6. Step 6: Final answer
    x = 176,343.63

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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.