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Finding the Fourth Proportional to 291,535.40, 437,303.10 and 113,917.79

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Solution

The fourth proportional to 291,535.40, 437,303.10 and 113,917.79 is: 170,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,535.40 : 437,303.10 = 113,917.79 : x
  2. Step 2: Convert to fraction form
    291,535.40/437,303.10 = 113,917.79/x
  3. Step 3: Cross multiply
    291,535.40x = 437,303.10 × 113,917.79
  4. Step 4: Simplify right side
    291,535.40x = 49,816,604,232.60
  5. Step 5: Solve for x
    x = 49,816,604,232.60/291,535.40
  6. Step 6: Final answer
    x = 170,876.69

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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.