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Finding the Fourth Proportional to 253,124.10, 380,123.55 and 135,026.10

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Solution

The fourth proportional to 253,124.10, 380,123.55 and 135,026.10 is: 202,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,124.10 : 380,123.55 = 135,026.10 : x
  2. Step 2: Convert to fraction form
    253,124.10/380,123.55 = 135,026.10/x
  3. Step 3: Cross multiply
    253,124.10x = 380,123.55 × 135,026.10
  4. Step 4: Simplify right side
    253,124.10x = 51,326,600,474.66
  5. Step 5: Solve for x
    x = 51,326,600,474.66/253,124.10
  6. Step 6: Final answer
    x = 202,772.48

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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.