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Finding the Fourth Proportional to 143,363.64, 214,975.80 and 43,505.76

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Solution

The fourth proportional to 143,363.64, 214,975.80 and 43,505.76 is: 65,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,363.64 : 214,975.80 = 43,505.76 : x
  2. Step 2: Convert to fraction form
    143,363.64/214,975.80 = 43,505.76/x
  3. Step 3: Cross multiply
    143,363.64x = 214,975.80 × 43,505.76
  4. Step 4: Simplify right side
    143,363.64x = 9,352,685,560.61
  5. Step 5: Solve for x
    x = 9,352,685,560.61/143,363.64
  6. Step 6: Final answer
    x = 65,237.50

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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.