Home / 402,288.38-555,079.41-230,258.96

Finding the Fourth Proportional to 402,288.38, 555,079.41 and 230,258.96

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Solution

The fourth proportional to 402,288.38, 555,079.41 and 230,258.96 is: 317,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,288.38 : 555,079.41 = 230,258.96 : x
  2. Step 2: Convert to fraction form
    402,288.38/555,079.41 = 230,258.96/x
  3. Step 3: Cross multiply
    402,288.38x = 555,079.41 × 230,258.96
  4. Step 4: Simplify right side
    402,288.38x = 127,812,007,664.01
  5. Step 5: Solve for x
    x = 127,812,007,664.01/402,288.38
  6. Step 6: Final answer
    x = 317,712.40

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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.