Home / 292,332.78-438,512.13-81,966.06

Finding the Fourth Proportional to 292,332.78, 438,512.13 and 81,966.06

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Solution

The fourth proportional to 292,332.78, 438,512.13 and 81,966.06 is: 122,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,332.78 : 438,512.13 = 81,966.06 : x
  2. Step 2: Convert to fraction form
    292,332.78/438,512.13 = 81,966.06/x
  3. Step 3: Cross multiply
    292,332.78x = 438,512.13 × 81,966.06
  4. Step 4: Simplify right side
    292,332.78x = 35,943,111,558.31
  5. Step 5: Solve for x
    x = 35,943,111,558.31/292,332.78
  6. Step 6: Final answer
    x = 122,952.72

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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.