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Finding the Fourth Proportional to 318,555.52, 439,636.08 and 175,344.64

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Solution

The fourth proportional to 318,555.52, 439,636.08 and 175,344.64 is: 241,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,555.52 : 439,636.08 = 175,344.64 : x
  2. Step 2: Convert to fraction form
    318,555.52/439,636.08 = 175,344.64/x
  3. Step 3: Cross multiply
    318,555.52x = 439,636.08 × 175,344.64
  4. Step 4: Simplify right side
    318,555.52x = 77,087,830,178.61
  5. Step 5: Solve for x
    x = 77,087,830,178.61/318,555.52
  6. Step 6: Final answer
    x = 241,991.82

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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.