Home / 321,827.20-482,740.80-144,145.60

Finding the Fourth Proportional to 321,827.20, 482,740.80 and 144,145.60

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Solution

The fourth proportional to 321,827.20, 482,740.80 and 144,145.60 is: 216,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,827.20 : 482,740.80 = 144,145.60 : x
  2. Step 2: Convert to fraction form
    321,827.20/482,740.80 = 144,145.60/x
  3. Step 3: Cross multiply
    321,827.20x = 482,740.80 × 144,145.60
  4. Step 4: Simplify right side
    321,827.20x = 69,584,962,260.48
  5. Step 5: Solve for x
    x = 69,584,962,260.48/321,827.20
  6. Step 6: Final answer
    x = 216,218.40

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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.