Home / 280,713.77-387,393.03-156,537.62

Finding the Fourth Proportional to 280,713.77, 387,393.03 and 156,537.62

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Solution

The fourth proportional to 280,713.77, 387,393.03 and 156,537.62 is: 216,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,713.77 : 387,393.03 = 156,537.62 : x
  2. Step 2: Convert to fraction form
    280,713.77/387,393.03 = 156,537.62/x
  3. Step 3: Cross multiply
    280,713.77x = 387,393.03 × 156,537.62
  4. Step 4: Simplify right side
    280,713.77x = 60,641,582,708.93
  5. Step 5: Solve for x
    x = 60,641,582,708.93/280,713.77
  6. Step 6: Final answer
    x = 216,026.39

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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.