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Finding the Fourth Proportional to 392,518.31, 541,673.73 and 220,412.34

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Solution

The fourth proportional to 392,518.31, 541,673.73 and 220,412.34 is: 304,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,518.31 : 541,673.73 = 220,412.34 : x
  2. Step 2: Convert to fraction form
    392,518.31/541,673.73 = 220,412.34/x
  3. Step 3: Cross multiply
    392,518.31x = 541,673.73 × 220,412.34
  4. Step 4: Simplify right side
    392,518.31x = 119,391,574,345.83
  5. Step 5: Solve for x
    x = 119,391,574,345.83/392,518.31
  6. Step 6: Final answer
    x = 304,168.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.