Home / 252,429.90-378,901.60-126,160.74

Finding the Fourth Proportional to 252,429.90, 378,901.60 and 126,160.74

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Solution

The fourth proportional to 252,429.90, 378,901.60 and 126,160.74 is: 189,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,429.90 : 378,901.60 = 126,160.74 : x
  2. Step 2: Convert to fraction form
    252,429.90/378,901.60 = 126,160.74/x
  3. Step 3: Cross multiply
    252,429.90x = 378,901.60 × 126,160.74
  4. Step 4: Simplify right side
    252,429.90x = 47,802,506,243.18
  5. Step 5: Solve for x
    x = 47,802,506,243.18/252,429.90
  6. Step 6: Final answer
    x = 189,369.43

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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.