Home / 287,185.46-396,325.04-158,137.47

Finding the Fourth Proportional to 287,185.46, 396,325.04 and 158,137.47

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Solution

The fourth proportional to 287,185.46, 396,325.04 and 158,137.47 is: 218,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,185.46 : 396,325.04 = 158,137.47 : x
  2. Step 2: Convert to fraction form
    287,185.46/396,325.04 = 158,137.47/x
  3. Step 3: Cross multiply
    287,185.46x = 396,325.04 × 158,137.47
  4. Step 4: Simplify right side
    287,185.46x = 62,673,838,332.56
  5. Step 5: Solve for x
    x = 62,673,838,332.56/287,185.46
  6. Step 6: Final answer
    x = 218,234.72

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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.