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Finding the Fourth Proportional to 156,038.40, 233,750.40 and 144,979.20

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Solution

The fourth proportional to 156,038.40, 233,750.40 and 144,979.20 is: 217,183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038.40 : 233,750.40 = 144,979.20 : x
  2. Step 2: Convert to fraction form
    156,038.40/233,750.40 = 144,979.20/x
  3. Step 3: Cross multiply
    156,038.40x = 233,750.40 × 144,979.20
  4. Step 4: Simplify right side
    156,038.40x = 33,888,945,991.68
  5. Step 5: Solve for x
    x = 33,888,945,991.68/156,038.40
  6. Step 6: Final answer
    x = 217,183.37

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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.