Home / 258,834.40-388,306.80-146,567.20

Finding the Fourth Proportional to 258,834.40, 388,306.80 and 146,567.20

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Solution

The fourth proportional to 258,834.40, 388,306.80 and 146,567.20 is: 219,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,834.40 : 388,306.80 = 146,567.20 : x
  2. Step 2: Convert to fraction form
    258,834.40/388,306.80 = 146,567.20/x
  3. Step 3: Cross multiply
    258,834.40x = 388,306.80 × 146,567.20
  4. Step 4: Simplify right side
    258,834.40x = 56,913,040,416.96
  5. Step 5: Solve for x
    x = 56,913,040,416.96/258,834.40
  6. Step 6: Final answer
    x = 219,882.06

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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.