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Finding the Fourth Proportional to 387,083.56, 580,661.88 and 150,444.40

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Solution

The fourth proportional to 387,083.56, 580,661.88 and 150,444.40 is: 225,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,083.56 : 580,661.88 = 150,444.40 : x
  2. Step 2: Convert to fraction form
    387,083.56/580,661.88 = 150,444.40/x
  3. Step 3: Cross multiply
    387,083.56x = 580,661.88 × 150,444.40
  4. Step 4: Simplify right side
    387,083.56x = 87,357,328,139.47
  5. Step 5: Solve for x
    x = 87,357,328,139.47/387,083.56
  6. Step 6: Final answer
    x = 225,680.80

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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.