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Finding the Fourth Proportional to 387,150.30, 580,696.76 and 162,501.66

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Solution

The fourth proportional to 387,150.30, 580,696.76 and 162,501.66 is: 243,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,150.30 : 580,696.76 = 162,501.66 : x
  2. Step 2: Convert to fraction form
    387,150.30/580,696.76 = 162,501.66/x
  3. Step 3: Cross multiply
    387,150.30x = 580,696.76 × 162,501.66
  4. Step 4: Simplify right side
    387,150.30x = 94,364,187,456.62
  5. Step 5: Solve for x
    x = 94,364,187,456.62/387,150.30
  6. Step 6: Final answer
    x = 243,740.45

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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.