Home / 349,550.10-523,979.55-138,906.90

Finding the Fourth Proportional to 349,550.10, 523,979.55 and 138,906.90

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Solution

The fourth proportional to 349,550.10, 523,979.55 and 138,906.90 is: 208,223.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,550.10 : 523,979.55 = 138,906.90 : x
  2. Step 2: Convert to fraction form
    349,550.10/523,979.55 = 138,906.90/x
  3. Step 3: Cross multiply
    349,550.10x = 523,979.55 × 138,906.90
  4. Step 4: Simplify right side
    349,550.10x = 72,784,374,953.90
  5. Step 5: Solve for x
    x = 72,784,374,953.90/349,550.10
  6. Step 6: Final answer
    x = 208,223.01

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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.