Home / 387,739.70-534,862.30-226,560.53

Finding the Fourth Proportional to 387,739.70, 534,862.30 and 226,560.53

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Solution

The fourth proportional to 387,739.70, 534,862.30 and 226,560.53 is: 312,525.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,739.70 : 534,862.30 = 226,560.53 : x
  2. Step 2: Convert to fraction form
    387,739.70/534,862.30 = 226,560.53/x
  3. Step 3: Cross multiply
    387,739.70x = 534,862.30 × 226,560.53
  4. Step 4: Simplify right side
    387,739.70x = 121,178,686,165.02
  5. Step 5: Solve for x
    x = 121,178,686,165.02/387,739.70
  6. Step 6: Final answer
    x = 312,525.87

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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.