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Finding the Fourth Proportional to 291,887.64, 437,909.46 and 104,900.76

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Solution

The fourth proportional to 291,887.64, 437,909.46 and 104,900.76 is: 157,379.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,887.64 : 437,909.46 = 104,900.76 : x
  2. Step 2: Convert to fraction form
    291,887.64/437,909.46 = 104,900.76/x
  3. Step 3: Cross multiply
    291,887.64x = 437,909.46 × 104,900.76
  4. Step 4: Simplify right side
    291,887.64x = 45,937,035,165.19
  5. Step 5: Solve for x
    x = 45,937,035,165.19/291,887.64
  6. Step 6: Final answer
    x = 157,379.17

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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.