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Finding the Fourth Proportional to 366,861.20, 550,291.80 and 307,812.20

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Solution

The fourth proportional to 366,861.20, 550,291.80 and 307,812.20 is: 461,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,861.20 : 550,291.80 = 307,812.20 : x
  2. Step 2: Convert to fraction form
    366,861.20/550,291.80 = 307,812.20/x
  3. Step 3: Cross multiply
    366,861.20x = 550,291.80 × 307,812.20
  4. Step 4: Simplify right side
    366,861.20x = 169,386,529,599.96
  5. Step 5: Solve for x
    x = 169,386,529,599.96/366,861.20
  6. Step 6: Final answer
    x = 461,718.30

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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.