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Finding the Fourth Proportional to 536,133.60, 740,030.46 and 345,147

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Solution

The fourth proportional to 536,133.60, 740,030.46 and 345,147 is: 476,409.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,133.60 : 740,030.46 = 345,147 : x
  2. Step 2: Convert to fraction form
    536,133.60/740,030.46 = 345,147/x
  3. Step 3: Cross multiply
    536,133.60x = 740,030.46 × 345,147
  4. Step 4: Simplify right side
    536,133.60x = 255,419,293,177.62
  5. Step 5: Solve for x
    x = 255,419,293,177.62/536,133.60
  6. Step 6: Final answer
    x = 476,409.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.