Home / 258,000.20-387,000.30-247,632.20

Finding the Fourth Proportional to 258,000.20, 387,000.30 and 247,632.20

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Solution

The fourth proportional to 258,000.20, 387,000.30 and 247,632.20 is: 371,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,000.20 : 387,000.30 = 247,632.20 : x
  2. Step 2: Convert to fraction form
    258,000.20/387,000.30 = 247,632.20/x
  3. Step 3: Cross multiply
    258,000.20x = 387,000.30 × 247,632.20
  4. Step 4: Simplify right side
    258,000.20x = 95,833,735,689.66
  5. Step 5: Solve for x
    x = 95,833,735,689.66/258,000.20
  6. Step 6: Final answer
    x = 371,448.30

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1.5x scale

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.