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Finding the Fourth Proportional to 318,397.56, 439,374.78 and 175,148.52

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Solution

The fourth proportional to 318,397.56, 439,374.78 and 175,148.52 is: 241,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,397.56 : 439,374.78 = 175,148.52 : x
  2. Step 2: Convert to fraction form
    318,397.56/439,374.78 = 175,148.52/x
  3. Step 3: Cross multiply
    318,397.56x = 439,374.78 × 175,148.52
  4. Step 4: Simplify right side
    318,397.56x = 76,955,842,442.33
  5. Step 5: Solve for x
    x = 76,955,842,442.33/318,397.56
  6. Step 6: Final answer
    x = 241,697.34

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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.