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Finding the Fourth Proportional to 291,332.70, 436,999.05 and 202,859.10

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Solution

The fourth proportional to 291,332.70, 436,999.05 and 202,859.10 is: 304,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,332.70 : 436,999.05 = 202,859.10 : x
  2. Step 2: Convert to fraction form
    291,332.70/436,999.05 = 202,859.10/x
  3. Step 3: Cross multiply
    291,332.70x = 436,999.05 × 202,859.10
  4. Step 4: Simplify right side
    291,332.70x = 88,649,233,983.86
  5. Step 5: Solve for x
    x = 88,649,233,983.86/291,332.70
  6. Step 6: Final answer
    x = 304,288.65

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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.