Home / 318,768.85-439,904.01-175,534.12

Finding the Fourth Proportional to 318,768.85, 439,904.01 and 175,534.12

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Solution

The fourth proportional to 318,768.85, 439,904.01 and 175,534.12 is: 242,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,768.85 : 439,904.01 = 175,534.12 : x
  2. Step 2: Convert to fraction form
    318,768.85/439,904.01 = 175,534.12/x
  3. Step 3: Cross multiply
    318,768.85x = 439,904.01 × 175,534.12
  4. Step 4: Simplify right side
    318,768.85x = 77,218,163,279.82
  5. Step 5: Solve for x
    x = 77,218,163,279.82/318,768.85
  6. Step 6: Final answer
    x = 242,238.74

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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.