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Finding the Fourth Proportional to 325,205.40, 487,224.90 and 304,210.20

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Solution

The fourth proportional to 325,205.40, 487,224.90 and 304,210.20 is: 455,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,205.40 : 487,224.90 = 304,210.20 : x
  2. Step 2: Convert to fraction form
    325,205.40/487,224.90 = 304,210.20/x
  3. Step 3: Cross multiply
    325,205.40x = 487,224.90 × 304,210.20
  4. Step 4: Simplify right side
    325,205.40x = 148,218,784,273.98
  5. Step 5: Solve for x
    x = 148,218,784,273.98/325,205.40
  6. Step 6: Final answer
    x = 455,769.75

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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.