Home / 205,234.80-307,852.20-130,439.40

Finding the Fourth Proportional to 205,234.80, 307,852.20 and 130,439.40

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Solution

The fourth proportional to 205,234.80, 307,852.20 and 130,439.40 is: 195,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,234.80 : 307,852.20 = 130,439.40 : x
  2. Step 2: Convert to fraction form
    205,234.80/307,852.20 = 130,439.40/x
  3. Step 3: Cross multiply
    205,234.80x = 307,852.20 × 130,439.40
  4. Step 4: Simplify right side
    205,234.80x = 40,156,056,256.68
  5. Step 5: Solve for x
    x = 40,156,056,256.68/205,234.80
  6. Step 6: Final answer
    x = 195,659.10

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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.