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Finding the Fourth Proportional to 291,429.08, 437,216.52 and 91,741.40

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Solution

The fourth proportional to 291,429.08, 437,216.52 and 91,741.40 is: 137,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,429.08 : 437,216.52 = 91,741.40 : x
  2. Step 2: Convert to fraction form
    291,429.08/437,216.52 = 91,741.40/x
  3. Step 3: Cross multiply
    291,429.08x = 437,216.52 × 91,741.40
  4. Step 4: Simplify right side
    291,429.08x = 40,110,855,647.93
  5. Step 5: Solve for x
    x = 40,110,855,647.93/291,429.08
  6. Step 6: Final answer
    x = 137,635.05

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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.