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Finding the Fourth Proportional to 550,686.20, 826,108.12 and 243,280.56

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Solution

The fourth proportional to 550,686.20, 826,108.12 and 243,280.56 is: 364,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,686.20 : 826,108.12 = 243,280.56 : x
  2. Step 2: Convert to fraction form
    550,686.20/826,108.12 = 243,280.56/x
  3. Step 3: Cross multiply
    550,686.20x = 826,108.12 × 243,280.56
  4. Step 4: Simplify right side
    550,686.20x = 200,976,048,087.70
  5. Step 5: Solve for x
    x = 200,976,048,087.70/550,686.20
  6. Step 6: Final answer
    x = 364,955.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.