Home / 442,941.40-663,974.70-218,117.80

Finding the Fourth Proportional to 442,941.40, 663,974.70 and 218,117.80

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Solution

The fourth proportional to 442,941.40, 663,974.70 and 218,117.80 is: 326,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,941.40 : 663,974.70 = 218,117.80 : x
  2. Step 2: Convert to fraction form
    442,941.40/663,974.70 = 218,117.80/x
  3. Step 3: Cross multiply
    442,941.40x = 663,974.70 × 218,117.80
  4. Step 4: Simplify right side
    442,941.40x = 144,824,700,819.66
  5. Step 5: Solve for x
    x = 144,824,700,819.66/442,941.40
  6. Step 6: Final answer
    x = 326,961.31

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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.