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Finding the Fourth Proportional to 291,521.10, 437,476.05 and 133,668.30

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Solution

The fourth proportional to 291,521.10, 437,476.05 and 133,668.30 is: 200,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,521.10 : 437,476.05 = 133,668.30 : x
  2. Step 2: Convert to fraction form
    291,521.10/437,476.05 = 133,668.30/x
  3. Step 3: Cross multiply
    291,521.10x = 437,476.05 × 133,668.30
  4. Step 4: Simplify right side
    291,521.10x = 58,476,679,894.22
  5. Step 5: Solve for x
    x = 58,476,679,894.22/291,521.10
  6. Step 6: Final answer
    x = 200,591.59

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1.5x scale

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.