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Finding the Fourth Proportional to 187,218.40, 280,244.40 and 181,386.40

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Solution

The fourth proportional to 187,218.40, 280,244.40 and 181,386.40 is: 271,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,218.40 : 280,244.40 = 181,386.40 : x
  2. Step 2: Convert to fraction form
    187,218.40/280,244.40 = 181,386.40/x
  3. Step 3: Cross multiply
    187,218.40x = 280,244.40 × 181,386.40
  4. Step 4: Simplify right side
    187,218.40x = 50,832,522,836.16
  5. Step 5: Solve for x
    x = 50,832,522,836.16/187,218.40
  6. Step 6: Final answer
    x = 271,514.57

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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.