Home / 210,180.40-315,562.20-131,448.40

Finding the Fourth Proportional to 210,180.40, 315,562.20 and 131,448.40

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Solution

The fourth proportional to 210,180.40, 315,562.20 and 131,448.40 is: 197,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,180.40 : 315,562.20 = 131,448.40 : x
  2. Step 2: Convert to fraction form
    210,180.40/315,562.20 = 131,448.40/x
  3. Step 3: Cross multiply
    210,180.40x = 315,562.20 × 131,448.40
  4. Step 4: Simplify right side
    210,180.40x = 41,480,146,290.48
  5. Step 5: Solve for x
    x = 41,480,146,290.48/210,180.40
  6. Step 6: Final answer
    x = 197,354.97

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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.