Home / 304,712.85-457,142.19-127,121.16

Finding the Fourth Proportional to 304,712.85, 457,142.19 and 127,121.16

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Solution

The fourth proportional to 304,712.85, 457,142.19 and 127,121.16 is: 190,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,712.85 : 457,142.19 = 127,121.16 : x
  2. Step 2: Convert to fraction form
    304,712.85/457,142.19 = 127,121.16/x
  3. Step 3: Cross multiply
    304,712.85x = 457,142.19 × 127,121.16
  4. Step 4: Simplify right side
    304,712.85x = 58,112,445,477.74
  5. Step 5: Solve for x
    x = 58,112,445,477.74/304,712.85
  6. Step 6: Final answer
    x = 190,712.16

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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.