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Finding the Fourth Proportional to 159,310.80, 239,095.80 and 154,126.80

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Solution

The fourth proportional to 159,310.80, 239,095.80 and 154,126.80 is: 231,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,310.80 : 239,095.80 = 154,126.80 : x
  2. Step 2: Convert to fraction form
    159,310.80/239,095.80 = 154,126.80/x
  3. Step 3: Cross multiply
    159,310.80x = 239,095.80 × 154,126.80
  4. Step 4: Simplify right side
    159,310.80x = 36,851,070,547.44
  5. Step 5: Solve for x
    x = 36,851,070,547.44/159,310.80
  6. Step 6: Final answer
    x = 231,315.58

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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.