Home / 205,490.16-308,260.15-72,343.17

Finding the Fourth Proportional to 205,490.16, 308,260.15 and 72,343.17

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Solution

The fourth proportional to 205,490.16, 308,260.15 and 72,343.17 is: 108,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,490.16 : 308,260.15 = 72,343.17 : x
  2. Step 2: Convert to fraction form
    205,490.16/308,260.15 = 72,343.17/x
  3. Step 3: Cross multiply
    205,490.16x = 308,260.15 × 72,343.17
  4. Step 4: Simplify right side
    205,490.16x = 22,300,516,254.82
  5. Step 5: Solve for x
    x = 22,300,516,254.82/205,490.16
  6. Step 6: Final answer
    x = 108,523.52

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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.