Home / 387,139.41-580,483.13-150,205.32

Finding the Fourth Proportional to 387,139.41, 580,483.13 and 150,205.32

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Solution

The fourth proportional to 387,139.41, 580,483.13 and 150,205.32 is: 225,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,139.41 : 580,483.13 = 150,205.32 : x
  2. Step 2: Convert to fraction form
    387,139.41/580,483.13 = 150,205.32/x
  3. Step 3: Cross multiply
    387,139.41x = 580,483.13 × 150,205.32
  4. Step 4: Simplify right side
    387,139.41x = 87,191,653,545.23
  5. Step 5: Solve for x
    x = 87,191,653,545.23/387,139.41
  6. Step 6: Final answer
    x = 225,220.30

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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.