Home / 288,917.58-398,718.05-159,853.98

Finding the Fourth Proportional to 288,917.58, 398,718.05 and 159,853.98

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Solution

The fourth proportional to 288,917.58, 398,718.05 and 159,853.98 is: 220,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,917.58 : 398,718.05 = 159,853.98 : x
  2. Step 2: Convert to fraction form
    288,917.58/398,718.05 = 159,853.98/x
  3. Step 3: Cross multiply
    288,917.58x = 398,718.05 × 159,853.98
  4. Step 4: Simplify right side
    288,917.58x = 63,736,666,764.87
  5. Step 5: Solve for x
    x = 63,736,666,764.87/288,917.58
  6. Step 6: Final answer
    x = 220,605.01

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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.