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Finding the Fourth Proportional to 318,458.76, 439,464 and 175,218.88

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Solution

The fourth proportional to 318,458.76, 439,464 and 175,218.88 is: 241,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,458.76 : 439,464 = 175,218.88 : x
  2. Step 2: Convert to fraction form
    318,458.76/439,464 = 175,218.88/x
  3. Step 3: Cross multiply
    318,458.76x = 439,464 × 175,218.88
  4. Step 4: Simplify right side
    318,458.76x = 77,002,389,880.32
  5. Step 5: Solve for x
    x = 77,002,389,880.32/318,458.76
  6. Step 6: Final answer
    x = 241,797.05

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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.