Home / 292,275.30-438,414.99-81,913.24

Finding the Fourth Proportional to 292,275.30, 438,414.99 and 81,913.24

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Solution

The fourth proportional to 292,275.30, 438,414.99 and 81,913.24 is: 122,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.30 : 438,414.99 = 81,913.24 : x
  2. Step 2: Convert to fraction form
    292,275.30/438,414.99 = 81,913.24/x
  3. Step 3: Cross multiply
    292,275.30x = 438,414.99 × 81,913.24
  4. Step 4: Simplify right side
    292,275.30x = 35,911,992,295.47
  5. Step 5: Solve for x
    x = 35,911,992,295.47/292,275.30
  6. Step 6: Final answer
    x = 122,870.43

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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.