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Finding the Fourth Proportional to 144,810.60, 217,280.70 and 65,884.20

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Solution

The fourth proportional to 144,810.60, 217,280.70 and 65,884.20 is: 98,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,810.60 : 217,280.70 = 65,884.20 : x
  2. Step 2: Convert to fraction form
    144,810.60/217,280.70 = 65,884.20/x
  3. Step 3: Cross multiply
    144,810.60x = 217,280.70 × 65,884.20
  4. Step 4: Simplify right side
    144,810.60x = 14,315,365,094.94
  5. Step 5: Solve for x
    x = 14,315,365,094.94/144,810.60
  6. Step 6: Final answer
    x = 98,855.78

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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.