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Finding the Fourth Proportional to 144,285.30, 216,325.49 and 103,782.87

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Solution

The fourth proportional to 144,285.30, 216,325.49 and 103,782.87 is: 155,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,285.30 : 216,325.49 = 103,782.87 : x
  2. Step 2: Convert to fraction form
    144,285.30/216,325.49 = 103,782.87/x
  3. Step 3: Cross multiply
    144,285.30x = 216,325.49 × 103,782.87
  4. Step 4: Simplify right side
    144,285.30x = 22,450,879,687.44
  5. Step 5: Solve for x
    x = 22,450,879,687.44/144,285.30
  6. Step 6: Final answer
    x = 155,600.60

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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.