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Finding the Fourth Proportional to 153,208.64, 229,766.21 and 123,151.57

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Solution

The fourth proportional to 153,208.64, 229,766.21 and 123,151.57 is: 184,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,208.64 : 229,766.21 = 123,151.57 : x
  2. Step 2: Convert to fraction form
    153,208.64/229,766.21 = 123,151.57/x
  3. Step 3: Cross multiply
    153,208.64x = 229,766.21 × 123,151.57
  4. Step 4: Simplify right side
    153,208.64x = 28,296,068,345.62
  5. Step 5: Solve for x
    x = 28,296,068,345.62/153,208.64
  6. Step 6: Final answer
    x = 184,689.78

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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.