Home / 485,316.76-727,977-148,356.11

Finding the Fourth Proportional to 485,316.76, 727,977 and 148,356.11

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Solution

The fourth proportional to 485,316.76, 727,977 and 148,356.11 is: 222,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,316.76 : 727,977 = 148,356.11 : x
  2. Step 2: Convert to fraction form
    485,316.76/727,977 = 148,356.11/x
  3. Step 3: Cross multiply
    485,316.76x = 727,977 × 148,356.11
  4. Step 4: Simplify right side
    485,316.76x = 107,999,835,889.47
  5. Step 5: Solve for x
    x = 107,999,835,889.47/485,316.76
  6. Step 6: Final answer
    x = 222,534.73

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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.