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Finding the Fourth Proportional to 318,514.60, 439,538.97 and 175,270.96

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Solution

The fourth proportional to 318,514.60, 439,538.97 and 175,270.96 is: 241,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,514.60 : 439,538.97 = 175,270.96 : x
  2. Step 2: Convert to fraction form
    318,514.60/439,538.97 = 175,270.96/x
  3. Step 3: Cross multiply
    318,514.60x = 439,538.97 × 175,270.96
  4. Step 4: Simplify right side
    318,514.60x = 77,038,417,229.31
  5. Step 5: Solve for x
    x = 77,038,417,229.31/318,514.60
  6. Step 6: Final answer
    x = 241,867.77

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1.5x scale

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.