Home / 348,664.32-522,918.72-138,245.76

Finding the Fourth Proportional to 348,664.32, 522,918.72 and 138,245.76

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Solution

The fourth proportional to 348,664.32, 522,918.72 and 138,245.76 is: 207,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,664.32 : 522,918.72 = 138,245.76 : x
  2. Step 2: Convert to fraction form
    348,664.32/522,918.72 = 138,245.76/x
  3. Step 3: Cross multiply
    348,664.32x = 522,918.72 × 138,245.76
  4. Step 4: Simplify right side
    348,664.32x = 72,291,295,864.63
  5. Step 5: Solve for x
    x = 72,291,295,864.63/348,664.32
  6. Step 6: Final answer
    x = 207,337.81

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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.