Home / 472,042.40-651,454.80-268,129.76

Finding the Fourth Proportional to 472,042.40, 651,454.80 and 268,129.76

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Solution

The fourth proportional to 472,042.40, 651,454.80 and 268,129.76 is: 370,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,042.40 : 651,454.80 = 268,129.76 : x
  2. Step 2: Convert to fraction form
    472,042.40/651,454.80 = 268,129.76/x
  3. Step 3: Cross multiply
    472,042.40x = 651,454.80 × 268,129.76
  4. Step 4: Simplify right side
    472,042.40x = 174,674,419,174.85
  5. Step 5: Solve for x
    x = 174,674,419,174.85/472,042.40
  6. Step 6: Final answer
    x = 370,039.68

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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.