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Finding the Fourth Proportional to 242,301.78, 334,371.60 and 151,707.78

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Solution

The fourth proportional to 242,301.78, 334,371.60 and 151,707.78 is: 209,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,301.78 : 334,371.60 = 151,707.78 : x
  2. Step 2: Convert to fraction form
    242,301.78/334,371.60 = 151,707.78/x
  3. Step 3: Cross multiply
    242,301.78x = 334,371.60 × 151,707.78
  4. Step 4: Simplify right side
    242,301.78x = 50,726,773,131.05
  5. Step 5: Solve for x
    x = 50,726,773,131.05/242,301.78
  6. Step 6: Final answer
    x = 209,353.70

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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.