Home / 280,610.12-387,250.46-153,293.91

Finding the Fourth Proportional to 280,610.12, 387,250.46 and 153,293.91

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Solution

The fourth proportional to 280,610.12, 387,250.46 and 153,293.91 is: 211,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,610.12 : 387,250.46 = 153,293.91 : x
  2. Step 2: Convert to fraction form
    280,610.12/387,250.46 = 153,293.91/x
  3. Step 3: Cross multiply
    280,610.12x = 387,250.46 × 153,293.91
  4. Step 4: Simplify right side
    280,610.12x = 59,363,137,545.93
  5. Step 5: Solve for x
    x = 59,363,137,545.93/280,610.12
  6. Step 6: Final answer
    x = 211,550.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.