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Finding the Fourth Proportional to 342,765.40, 473,010.44 and 189,800.30

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Solution

The fourth proportional to 342,765.40, 473,010.44 and 189,800.30 is: 261,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,765.40 : 473,010.44 = 189,800.30 : x
  2. Step 2: Convert to fraction form
    342,765.40/473,010.44 = 189,800.30/x
  3. Step 3: Cross multiply
    342,765.40x = 473,010.44 × 189,800.30
  4. Step 4: Simplify right side
    342,765.40x = 89,777,522,983.49
  5. Step 5: Solve for x
    x = 89,777,522,983.49/342,765.40
  6. Step 6: Final answer
    x = 261,921.20

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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.