Home / 318,634.17-439,715.07-175,393.50

Finding the Fourth Proportional to 318,634.17, 439,715.07 and 175,393.50

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Solution

The fourth proportional to 318,634.17, 439,715.07 and 175,393.50 is: 242,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,634.17 : 439,715.07 = 175,393.50 : x
  2. Step 2: Convert to fraction form
    318,634.17/439,715.07 = 175,393.50/x
  3. Step 3: Cross multiply
    318,634.17x = 439,715.07 × 175,393.50
  4. Step 4: Simplify right side
    318,634.17x = 77,123,165,130.05
  5. Step 5: Solve for x
    x = 77,123,165,130.05/318,634.17
  6. Step 6: Final answer
    x = 242,042.98

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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.