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Finding the Fourth Proportional to 402,286.88, 555,077.34 and 230,257.46

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Solution

The fourth proportional to 402,286.88, 555,077.34 and 230,257.46 is: 317,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,286.88 : 555,077.34 = 230,257.46 : x
  2. Step 2: Convert to fraction form
    402,286.88/555,077.34 = 230,257.46/x
  3. Step 3: Cross multiply
    402,286.88x = 555,077.34 × 230,257.46
  4. Step 4: Simplify right side
    402,286.88x = 127,810,698,411.96
  5. Step 5: Solve for x
    x = 127,810,698,411.96/402,286.88
  6. Step 6: Final answer
    x = 317,710.33

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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.