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Finding the Fourth Proportional to 235,775.56, 325,374.42 and 128,348.68

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Solution

The fourth proportional to 235,775.56, 325,374.42 and 128,348.68 is: 177,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,775.56 : 325,374.42 = 128,348.68 : x
  2. Step 2: Convert to fraction form
    235,775.56/325,374.42 = 128,348.68/x
  3. Step 3: Cross multiply
    235,775.56x = 325,374.42 × 128,348.68
  4. Step 4: Simplify right side
    235,775.56x = 41,761,377,312.77
  5. Step 5: Solve for x
    x = 41,761,377,312.77/235,775.56
  6. Step 6: Final answer
    x = 177,123.44

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1.5x scale

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.