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Finding the Fourth Proportional to 144,157.30, 216,235.44 and 38,976.28

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Solution

The fourth proportional to 144,157.30, 216,235.44 and 38,976.28 is: 58,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,157.30 : 216,235.44 = 38,976.28 : x
  2. Step 2: Convert to fraction form
    144,157.30/216,235.44 = 38,976.28/x
  3. Step 3: Cross multiply
    144,157.30x = 216,235.44 × 38,976.28
  4. Step 4: Simplify right side
    144,157.30x = 8,428,053,055.36
  5. Step 5: Solve for x
    x = 8,428,053,055.36/144,157.30
  6. Step 6: Final answer
    x = 58,464.28

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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.