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Finding the Fourth Proportional to 145,464.69, 218,194.84 and 65,446.15

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Solution

The fourth proportional to 145,464.69, 218,194.84 and 65,446.15 is: 98,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,464.69 : 218,194.84 = 65,446.15 : x
  2. Step 2: Convert to fraction form
    145,464.69/218,194.84 = 65,446.15/x
  3. Step 3: Cross multiply
    145,464.69x = 218,194.84 × 65,446.15
  4. Step 4: Simplify right side
    145,464.69x = 14,280,012,227.87
  5. Step 5: Solve for x
    x = 14,280,012,227.87/145,464.69
  6. Step 6: Final answer
    x = 98,168.24

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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.