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Finding the Fourth Proportional to 159,862.80, 239,923.80 and 154,678.80

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Solution

The fourth proportional to 159,862.80, 239,923.80 and 154,678.80 is: 232,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,862.80 : 239,923.80 = 154,678.80 : x
  2. Step 2: Convert to fraction form
    159,862.80/239,923.80 = 154,678.80/x
  3. Step 3: Cross multiply
    159,862.80x = 239,923.80 × 154,678.80
  4. Step 4: Simplify right side
    159,862.80x = 37,111,125,475.44
  5. Step 5: Solve for x
    x = 37,111,125,475.44/159,862.80
  6. Step 6: Final answer
    x = 232,143.60

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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.