Home / 286,542.74-395,426.12-159,215.60

Finding the Fourth Proportional to 286,542.74, 395,426.12 and 159,215.60

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Solution

The fourth proportional to 286,542.74, 395,426.12 and 159,215.60 is: 219,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,542.74 : 395,426.12 = 159,215.60 : x
  2. Step 2: Convert to fraction form
    286,542.74/395,426.12 = 159,215.60/x
  3. Step 3: Cross multiply
    286,542.74x = 395,426.12 × 159,215.60
  4. Step 4: Simplify right side
    286,542.74x = 62,958,006,951.47
  5. Step 5: Solve for x
    x = 62,958,006,951.47/286,542.74
  6. Step 6: Final answer
    x = 219,715.94

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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.