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Finding the Fourth Proportional to 391,502.64, 540,248.02 and 230,326.52

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Solution

The fourth proportional to 391,502.64, 540,248.02 and 230,326.52 is: 317,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,502.64 : 540,248.02 = 230,326.52 : x
  2. Step 2: Convert to fraction form
    391,502.64/540,248.02 = 230,326.52/x
  3. Step 3: Cross multiply
    391,502.64x = 540,248.02 × 230,326.52
  4. Step 4: Simplify right side
    391,502.64x = 124,433,446,383.49
  5. Step 5: Solve for x
    x = 124,433,446,383.49/391,502.64
  6. Step 6: Final answer
    x = 317,835.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.