Home / 282,434.20-389,768.18-155,109.80

Finding the Fourth Proportional to 282,434.20, 389,768.18 and 155,109.80

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Solution

The fourth proportional to 282,434.20, 389,768.18 and 155,109.80 is: 214,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,434.20 : 389,768.18 = 155,109.80 : x
  2. Step 2: Convert to fraction form
    282,434.20/389,768.18 = 155,109.80/x
  3. Step 3: Cross multiply
    282,434.20x = 389,768.18 × 155,109.80
  4. Step 4: Simplify right side
    282,434.20x = 60,456,864,446.16
  5. Step 5: Solve for x
    x = 60,456,864,446.16/282,434.20
  6. Step 6: Final answer
    x = 214,056.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.