Home / 326,290.52-489,341.10-136,745.93

Finding the Fourth Proportional to 326,290.52, 489,341.10 and 136,745.93

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Solution

The fourth proportional to 326,290.52, 489,341.10 and 136,745.93 is: 205,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,290.52 : 489,341.10 = 136,745.93 : x
  2. Step 2: Convert to fraction form
    326,290.52/489,341.10 = 136,745.93/x
  3. Step 3: Cross multiply
    326,290.52x = 489,341.10 × 136,745.93
  4. Step 4: Simplify right side
    326,290.52x = 66,915,401,360.02
  5. Step 5: Solve for x
    x = 66,915,401,360.02/326,290.52
  6. Step 6: Final answer
    x = 205,079.21

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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.