Home / 347,739.30-521,667.90-107,798.40

Finding the Fourth Proportional to 347,739.30, 521,667.90 and 107,798.40

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Solution

The fourth proportional to 347,739.30, 521,667.90 and 107,798.40 is: 161,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,739.30 : 521,667.90 = 107,798.40 : x
  2. Step 2: Convert to fraction form
    347,739.30/521,667.90 = 107,798.40/x
  3. Step 3: Cross multiply
    347,739.30x = 521,667.90 × 107,798.40
  4. Step 4: Simplify right side
    347,739.30x = 56,234,964,951.36
  5. Step 5: Solve for x
    x = 56,234,964,951.36/347,739.30
  6. Step 6: Final answer
    x = 161,715.87

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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.