Home / 306,046.20-459,069.30-257,057.40

Finding the Fourth Proportional to 306,046.20, 459,069.30 and 257,057.40

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Solution

The fourth proportional to 306,046.20, 459,069.30 and 257,057.40 is: 385,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,046.20 : 459,069.30 = 257,057.40 : x
  2. Step 2: Convert to fraction form
    306,046.20/459,069.30 = 257,057.40/x
  3. Step 3: Cross multiply
    306,046.20x = 459,069.30 × 257,057.40
  4. Step 4: Simplify right side
    306,046.20x = 118,007,160,677.82
  5. Step 5: Solve for x
    x = 118,007,160,677.82/306,046.20
  6. Step 6: Final answer
    x = 385,586.10

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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.