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Finding the Fourth Proportional to 295,280.30, 442,920.45 and 206,806.70

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Solution

The fourth proportional to 295,280.30, 442,920.45 and 206,806.70 is: 310,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,280.30 : 442,920.45 = 206,806.70 : x
  2. Step 2: Convert to fraction form
    295,280.30/442,920.45 = 206,806.70/x
  3. Step 3: Cross multiply
    295,280.30x = 442,920.45 × 206,806.70
  4. Step 4: Simplify right side
    295,280.30x = 91,598,916,627.02
  5. Step 5: Solve for x
    x = 91,598,916,627.02/295,280.30
  6. Step 6: Final answer
    x = 310,210.05

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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.