Home / 253,531.42-380,174.11-127,117.35

Finding the Fourth Proportional to 253,531.42, 380,174.11 and 127,117.35

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Solution

The fourth proportional to 253,531.42, 380,174.11 and 127,117.35 is: 190,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,531.42 : 380,174.11 = 127,117.35 : x
  2. Step 2: Convert to fraction form
    253,531.42/380,174.11 = 127,117.35/x
  3. Step 3: Cross multiply
    253,531.42x = 380,174.11 × 127,117.35
  4. Step 4: Simplify right side
    253,531.42x = 48,326,725,084.02
  5. Step 5: Solve for x
    x = 48,326,725,084.02/253,531.42
  6. Step 6: Final answer
    x = 190,614.35

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1.5x scale

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.