Home / 378,719.76-567,981.36-112,417.68

Finding the Fourth Proportional to 378,719.76, 567,981.36 and 112,417.68

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Solution

The fourth proportional to 378,719.76, 567,981.36 and 112,417.68 is: 168,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,719.76 : 567,981.36 = 112,417.68 : x
  2. Step 2: Convert to fraction form
    378,719.76/567,981.36 = 112,417.68/x
  3. Step 3: Cross multiply
    378,719.76x = 567,981.36 × 112,417.68
  4. Step 4: Simplify right side
    378,719.76x = 63,851,146,774.44
  5. Step 5: Solve for x
    x = 63,851,146,774.44/378,719.76
  6. Step 6: Final answer
    x = 168,597.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.