Home / 258,010.20-387,015.30-173,810.70

Finding the Fourth Proportional to 258,010.20, 387,015.30 and 173,810.70

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Solution

The fourth proportional to 258,010.20, 387,015.30 and 173,810.70 is: 260,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,010.20 : 387,015.30 = 173,810.70 : x
  2. Step 2: Convert to fraction form
    258,010.20/387,015.30 = 173,810.70/x
  3. Step 3: Cross multiply
    258,010.20x = 387,015.30 × 173,810.70
  4. Step 4: Simplify right side
    258,010.20x = 67,267,400,203.71
  5. Step 5: Solve for x
    x = 67,267,400,203.71/258,010.20
  6. Step 6: Final answer
    x = 260,716.05

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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.