Home / 296,020.40-442,864.20-257,010.80

Finding the Fourth Proportional to 296,020.40, 442,864.20 and 257,010.80

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Solution

The fourth proportional to 296,020.40, 442,864.20 and 257,010.80 is: 384,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,020.40 : 442,864.20 = 257,010.80 : x
  2. Step 2: Convert to fraction form
    296,020.40/442,864.20 = 257,010.80/x
  3. Step 3: Cross multiply
    296,020.40x = 442,864.20 × 257,010.80
  4. Step 4: Simplify right side
    296,020.40x = 113,820,882,333.36
  5. Step 5: Solve for x
    x = 113,820,882,333.36/296,020.40
  6. Step 6: Final answer
    x = 384,503.51

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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.