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Finding the Fourth Proportional to 291,615.80, 437,423.70 and 166,868.60

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Solution

The fourth proportional to 291,615.80, 437,423.70 and 166,868.60 is: 250,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,615.80 : 437,423.70 = 166,868.60 : x
  2. Step 2: Convert to fraction form
    291,615.80/437,423.70 = 166,868.60/x
  3. Step 3: Cross multiply
    291,615.80x = 437,423.70 × 166,868.60
  4. Step 4: Simplify right side
    291,615.80x = 72,992,280,425.82
  5. Step 5: Solve for x
    x = 72,992,280,425.82/291,615.80
  6. Step 6: Final answer
    x = 250,302.90

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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.