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Finding the Fourth Proportional to 154,686.60, 232,029.90 and 115,320.60

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Solution

The fourth proportional to 154,686.60, 232,029.90 and 115,320.60 is: 172,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,686.60 : 232,029.90 = 115,320.60 : x
  2. Step 2: Convert to fraction form
    154,686.60/232,029.90 = 115,320.60/x
  3. Step 3: Cross multiply
    154,686.60x = 232,029.90 × 115,320.60
  4. Step 4: Simplify right side
    154,686.60x = 26,757,827,285.94
  5. Step 5: Solve for x
    x = 26,757,827,285.94/154,686.60
  6. Step 6: Final answer
    x = 172,980.90

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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.