Home / 280,760.24-387,448.50-159,901.52

Finding the Fourth Proportional to 280,760.24, 387,448.50 and 159,901.52

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Solution

The fourth proportional to 280,760.24, 387,448.50 and 159,901.52 is: 220,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,760.24 : 387,448.50 = 159,901.52 : x
  2. Step 2: Convert to fraction form
    280,760.24/387,448.50 = 159,901.52/x
  3. Step 3: Cross multiply
    280,760.24x = 387,448.50 × 159,901.52
  4. Step 4: Simplify right side
    280,760.24x = 61,953,604,071.72
  5. Step 5: Solve for x
    x = 61,953,604,071.72/280,760.24
  6. Step 6: Final answer
    x = 220,663.74

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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.