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Finding the Fourth Proportional to 321,570.16, 482,449.56 and 144,037.68

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Solution

The fourth proportional to 321,570.16, 482,449.56 and 144,037.68 is: 216,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,570.16 : 482,449.56 = 144,037.68 : x
  2. Step 2: Convert to fraction form
    321,570.16/482,449.56 = 144,037.68/x
  3. Step 3: Cross multiply
    321,570.16x = 482,449.56 × 144,037.68
  4. Step 4: Simplify right side
    321,570.16x = 69,490,915,339.42
  5. Step 5: Solve for x
    x = 69,490,915,339.42/321,570.16
  6. Step 6: Final answer
    x = 216,098.77

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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.