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Finding the Fourth Proportional to 162,875.80, 244,969.80 and 145,817.20

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Solution

The fourth proportional to 162,875.80, 244,969.80 and 145,817.20 is: 219,313.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,875.80 : 244,969.80 = 145,817.20 : x
  2. Step 2: Convert to fraction form
    162,875.80/244,969.80 = 145,817.20/x
  3. Step 3: Cross multiply
    162,875.80x = 244,969.80 × 145,817.20
  4. Step 4: Simplify right side
    162,875.80x = 35,720,810,320.56
  5. Step 5: Solve for x
    x = 35,720,810,320.56/162,875.80
  6. Step 6: Final answer
    x = 219,313.18

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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.