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Finding the Fourth Proportional to 291,672.90, 437,618.70 and 114,307.20

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Solution

The fourth proportional to 291,672.90, 437,618.70 and 114,307.20 is: 171,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,672.90 : 437,618.70 = 114,307.20 : x
  2. Step 2: Convert to fraction form
    291,672.90/437,618.70 = 114,307.20/x
  3. Step 3: Cross multiply
    291,672.90x = 437,618.70 × 114,307.20
  4. Step 4: Simplify right side
    291,672.90x = 50,022,968,264.64
  5. Step 5: Solve for x
    x = 50,022,968,264.64/291,672.90
  6. Step 6: Final answer
    x = 171,503.65

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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.