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Finding the Fourth Proportional to 387,246.72, 581,097.62 and 162,589.88

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Solution

The fourth proportional to 387,246.72, 581,097.62 and 162,589.88 is: 243,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,246.72 : 581,097.62 = 162,589.88 : x
  2. Step 2: Convert to fraction form
    387,246.72/581,097.62 = 162,589.88/x
  3. Step 3: Cross multiply
    387,246.72x = 581,097.62 × 162,589.88
  4. Step 4: Simplify right side
    387,246.72x = 94,480,594,163.30
  5. Step 5: Solve for x
    x = 94,480,594,163.30/387,246.72
  6. Step 6: Final answer
    x = 243,980.36

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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.