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Finding the Fourth Proportional to 154,842.80, 232,264.20 and 84,858.80

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Solution

The fourth proportional to 154,842.80, 232,264.20 and 84,858.80 is: 127,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,842.80 : 232,264.20 = 84,858.80 : x
  2. Step 2: Convert to fraction form
    154,842.80/232,264.20 = 84,858.80/x
  3. Step 3: Cross multiply
    154,842.80x = 232,264.20 × 84,858.80
  4. Step 4: Simplify right side
    154,842.80x = 19,709,661,294.96
  5. Step 5: Solve for x
    x = 19,709,661,294.96/154,842.80
  6. Step 6: Final answer
    x = 127,288.20

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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.