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Finding the Fourth Proportional to 345,150.60, 515,261.46 and 291,991.92

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Solution

The fourth proportional to 345,150.60, 515,261.46 and 291,991.92 is: 435,903.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,150.60 : 515,261.46 = 291,991.92 : x
  2. Step 2: Convert to fraction form
    345,150.60/515,261.46 = 291,991.92/x
  3. Step 3: Cross multiply
    345,150.60x = 515,261.46 × 291,991.92
  4. Step 4: Simplify right side
    345,150.60x = 150,452,183,007.40
  5. Step 5: Solve for x
    x = 150,452,183,007.40/345,150.60
  6. Step 6: Final answer
    x = 435,903.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.