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Finding the Fourth Proportional to 144,043.80, 216,065.70 and 38,873.40

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Solution

The fourth proportional to 144,043.80, 216,065.70 and 38,873.40 is: 58,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,043.80 : 216,065.70 = 38,873.40 : x
  2. Step 2: Convert to fraction form
    144,043.80/216,065.70 = 38,873.40/x
  3. Step 3: Cross multiply
    144,043.80x = 216,065.70 × 38,873.40
  4. Step 4: Simplify right side
    144,043.80x = 8,399,208,382.38
  5. Step 5: Solve for x
    x = 8,399,208,382.38/144,043.80
  6. Step 6: Final answer
    x = 58,310.10

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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.