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Finding the Fourth Proportional to 291,461.60, 437,192.40 and 166,815.20

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Solution

The fourth proportional to 291,461.60, 437,192.40 and 166,815.20 is: 250,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,461.60 : 437,192.40 = 166,815.20 : x
  2. Step 2: Convert to fraction form
    291,461.60/437,192.40 = 166,815.20/x
  3. Step 3: Cross multiply
    291,461.60x = 437,192.40 × 166,815.20
  4. Step 4: Simplify right side
    291,461.60x = 72,930,337,644.48
  5. Step 5: Solve for x
    x = 72,930,337,644.48/291,461.60
  6. Step 6: Final answer
    x = 250,222.80

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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.