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Finding the Fourth Proportional to 291,397.46, 437,166.14 and 111,479.91

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Solution

The fourth proportional to 291,397.46, 437,166.14 and 111,479.91 is: 167,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397.46 : 437,166.14 = 111,479.91 : x
  2. Step 2: Convert to fraction form
    291,397.46/437,166.14 = 111,479.91/x
  3. Step 3: Cross multiply
    291,397.46x = 437,166.14 × 111,479.91
  4. Step 4: Simplify right side
    291,397.46x = 48,735,241,384.85
  5. Step 5: Solve for x
    x = 48,735,241,384.85/291,397.46
  6. Step 6: Final answer
    x = 167,246.63

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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.