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Finding the Fourth Proportional to 347,713.70, 521,570.55 and 247,330.40

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Solution

The fourth proportional to 347,713.70, 521,570.55 and 247,330.40 is: 370,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,713.70 : 521,570.55 = 247,330.40 : x
  2. Step 2: Convert to fraction form
    347,713.70/521,570.55 = 247,330.40/x
  3. Step 3: Cross multiply
    347,713.70x = 521,570.55 × 247,330.40
  4. Step 4: Simplify right side
    347,713.70x = 129,000,252,759.72
  5. Step 5: Solve for x
    x = 129,000,252,759.72/347,713.70
  6. Step 6: Final answer
    x = 370,995.60

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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.