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Finding the Fourth Proportional to 391,439.52, 586,268.01 and 233,341.29

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Solution

The fourth proportional to 391,439.52, 586,268.01 and 233,341.29 is: 349,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,439.52 : 586,268.01 = 233,341.29 : x
  2. Step 2: Convert to fraction form
    391,439.52/586,268.01 = 233,341.29/x
  3. Step 3: Cross multiply
    391,439.52x = 586,268.01 × 233,341.29
  4. Step 4: Simplify right side
    391,439.52x = 136,800,533,739.13
  5. Step 5: Solve for x
    x = 136,800,533,739.13/391,439.52
  6. Step 6: Final answer
    x = 349,480.64

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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.