Home / 231,946.80-347,920.20-121,124.40

Finding the Fourth Proportional to 231,946.80, 347,920.20 and 121,124.40

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Solution

The fourth proportional to 231,946.80, 347,920.20 and 121,124.40 is: 181,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,946.80 : 347,920.20 = 121,124.40 : x
  2. Step 2: Convert to fraction form
    231,946.80/347,920.20 = 121,124.40/x
  3. Step 3: Cross multiply
    231,946.80x = 347,920.20 × 121,124.40
  4. Step 4: Simplify right side
    231,946.80x = 42,141,625,472.88
  5. Step 5: Solve for x
    x = 42,141,625,472.88/231,946.80
  6. Step 6: Final answer
    x = 181,686.60

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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.