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Finding the Fourth Proportional to 230,586.60, 345,912.30 and 72,798.60

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Solution

The fourth proportional to 230,586.60, 345,912.30 and 72,798.60 is: 109,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,586.60 : 345,912.30 = 72,798.60 : x
  2. Step 2: Convert to fraction form
    230,586.60/345,912.30 = 72,798.60/x
  3. Step 3: Cross multiply
    230,586.60x = 345,912.30 × 72,798.60
  4. Step 4: Simplify right side
    230,586.60x = 25,181,931,162.78
  5. Step 5: Solve for x
    x = 25,181,931,162.78/230,586.60
  6. Step 6: Final answer
    x = 109,208.13

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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.