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Finding the Fourth Proportional to 366,967.80, 550,451.70 and 260,679.60

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Solution

The fourth proportional to 366,967.80, 550,451.70 and 260,679.60 is: 391,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,967.80 : 550,451.70 = 260,679.60 : x
  2. Step 2: Convert to fraction form
    366,967.80/550,451.70 = 260,679.60/x
  3. Step 3: Cross multiply
    366,967.80x = 550,451.70 × 260,679.60
  4. Step 4: Simplify right side
    366,967.80x = 143,491,528,975.32
  5. Step 5: Solve for x
    x = 143,491,528,975.32/366,967.80
  6. Step 6: Final answer
    x = 391,019.40

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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.