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Finding the Fourth Proportional to 385,599.60, 578,399.40 and 227,746.80

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Solution

The fourth proportional to 385,599.60, 578,399.40 and 227,746.80 is: 341,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,599.60 : 578,399.40 = 227,746.80 : x
  2. Step 2: Convert to fraction form
    385,599.60/578,399.40 = 227,746.80/x
  3. Step 3: Cross multiply
    385,599.60x = 578,399.40 × 227,746.80
  4. Step 4: Simplify right side
    385,599.60x = 131,728,612,471.92
  5. Step 5: Solve for x
    x = 131,728,612,471.92/385,599.60
  6. Step 6: Final answer
    x = 341,620.20

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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.