Home / 402,286.73-555,267.42-230,301.05

Finding the Fourth Proportional to 402,286.73, 555,267.42 and 230,301.05

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Solution

The fourth proportional to 402,286.73, 555,267.42 and 230,301.05 is: 317,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,286.73 : 555,267.42 = 230,301.05 : x
  2. Step 2: Convert to fraction form
    402,286.73/555,267.42 = 230,301.05/x
  3. Step 3: Cross multiply
    402,286.73x = 555,267.42 × 230,301.05
  4. Step 4: Simplify right side
    402,286.73x = 127,878,667,080.45
  5. Step 5: Solve for x
    x = 127,878,667,080.45/402,286.73
  6. Step 6: Final answer
    x = 317,879.41

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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.