Home / 292,210.20-438,331.86-81,864.54

Finding the Fourth Proportional to 292,210.20, 438,331.86 and 81,864.54

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Solution

The fourth proportional to 292,210.20, 438,331.86 and 81,864.54 is: 122,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,210.20 : 438,331.86 = 81,864.54 : x
  2. Step 2: Convert to fraction form
    292,210.20/438,331.86 = 81,864.54/x
  3. Step 3: Cross multiply
    292,210.20x = 438,331.86 × 81,864.54
  4. Step 4: Simplify right side
    292,210.20x = 35,883,836,086.24
  5. Step 5: Solve for x
    x = 35,883,836,086.24/292,210.20
  6. Step 6: Final answer
    x = 122,801.45

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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.