Home / 347,783.10-521,847.45-137,427.90

Finding the Fourth Proportional to 347,783.10, 521,847.45 and 137,427.90

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Solution

The fourth proportional to 347,783.10, 521,847.45 and 137,427.90 is: 206,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,783.10 : 521,847.45 = 137,427.90 : x
  2. Step 2: Convert to fraction form
    347,783.10/521,847.45 = 137,427.90/x
  3. Step 3: Cross multiply
    347,783.10x = 521,847.45 × 137,427.90
  4. Step 4: Simplify right side
    347,783.10x = 71,716,399,173.86
  5. Step 5: Solve for x
    x = 71,716,399,173.86/347,783.10
  6. Step 6: Final answer
    x = 206,210.13

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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.