Home / 472,228.86-708,134.30-135,192.72

Finding the Fourth Proportional to 472,228.86, 708,134.30 and 135,192.72

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Solution

The fourth proportional to 472,228.86, 708,134.30 and 135,192.72 is: 202,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,228.86 : 708,134.30 = 135,192.72 : x
  2. Step 2: Convert to fraction form
    472,228.86/708,134.30 = 135,192.72/x
  3. Step 3: Cross multiply
    472,228.86x = 708,134.30 × 135,192.72
  4. Step 4: Simplify right side
    472,228.86x = 95,734,601,466.33
  5. Step 5: Solve for x
    x = 95,734,601,466.33/472,228.86
  6. Step 6: Final answer
    x = 202,729.25

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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.