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Finding the Fourth Proportional to 278,887.60, 384,850.16 and 158,030.33

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Solution

The fourth proportional to 278,887.60, 384,850.16 and 158,030.33 is: 218,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,887.60 : 384,850.16 = 158,030.33 : x
  2. Step 2: Convert to fraction form
    278,887.60/384,850.16 = 158,030.33/x
  3. Step 3: Cross multiply
    278,887.60x = 384,850.16 × 158,030.33
  4. Step 4: Simplify right side
    278,887.60x = 60,817,997,957.33
  5. Step 5: Solve for x
    x = 60,817,997,957.33/278,887.60
  6. Step 6: Final answer
    x = 218,073.51

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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.