Home / 286,723.20-430,084.80-146,755.20

Finding the Fourth Proportional to 286,723.20, 430,084.80 and 146,755.20

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Solution

The fourth proportional to 286,723.20, 430,084.80 and 146,755.20 is: 220,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,723.20 : 430,084.80 = 146,755.20 : x
  2. Step 2: Convert to fraction form
    286,723.20/430,084.80 = 146,755.20/x
  3. Step 3: Cross multiply
    286,723.20x = 430,084.80 × 146,755.20
  4. Step 4: Simplify right side
    286,723.20x = 63,117,180,840.96
  5. Step 5: Solve for x
    x = 63,117,180,840.96/286,723.20
  6. Step 6: Final answer
    x = 220,132.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.