Home / 252,135.51-347,941.01-137,417.78

Finding the Fourth Proportional to 252,135.51, 347,941.01 and 137,417.78

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Solution

The fourth proportional to 252,135.51, 347,941.01 and 137,417.78 is: 189,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,135.51 : 347,941.01 = 137,417.78 : x
  2. Step 2: Convert to fraction form
    252,135.51/347,941.01 = 137,417.78/x
  3. Step 3: Cross multiply
    252,135.51x = 347,941.01 × 137,417.78
  4. Step 4: Simplify right side
    252,135.51x = 47,813,279,769.00
  5. Step 5: Solve for x
    x = 47,813,279,769.00/252,135.51
  6. Step 6: Final answer
    x = 189,633.26

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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.