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Finding the Fourth Proportional to 329,998.60, 494,123.10 and 260,014.60

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Solution

The fourth proportional to 329,998.60, 494,123.10 and 260,014.60 is: 389,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,998.60 : 494,123.10 = 260,014.60 : x
  2. Step 2: Convert to fraction form
    329,998.60/494,123.10 = 260,014.60/x
  3. Step 3: Cross multiply
    329,998.60x = 494,123.10 × 260,014.60
  4. Step 4: Simplify right side
    329,998.60x = 128,479,220,197.26
  5. Step 5: Solve for x
    x = 128,479,220,197.26/329,998.60
  6. Step 6: Final answer
    x = 389,332.62

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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.