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Finding the Fourth Proportional to 347,228.70, 520,065.45 and 207,260.70

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Solution

The fourth proportional to 347,228.70, 520,065.45 and 207,260.70 is: 310,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,228.70 : 520,065.45 = 207,260.70 : x
  2. Step 2: Convert to fraction form
    347,228.70/520,065.45 = 207,260.70/x
  3. Step 3: Cross multiply
    347,228.70x = 520,065.45 × 207,260.70
  4. Step 4: Simplify right side
    347,228.70x = 107,789,129,212.82
  5. Step 5: Solve for x
    x = 107,789,129,212.82/347,228.70
  6. Step 6: Final answer
    x = 310,426.90

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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.