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Finding the Fourth Proportional to 318,374.64, 439,354.56 and 175,131.56

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Solution

The fourth proportional to 318,374.64, 439,354.56 and 175,131.56 is: 241,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,374.64 : 439,354.56 = 175,131.56 : x
  2. Step 2: Convert to fraction form
    318,374.64/439,354.56 = 175,131.56/x
  3. Step 3: Cross multiply
    318,374.64x = 439,354.56 × 175,131.56
  4. Step 4: Simplify right side
    318,374.64x = 76,944,849,485.91
  5. Step 5: Solve for x
    x = 76,944,849,485.91/318,374.64
  6. Step 6: Final answer
    x = 241,680.21

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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.