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Finding the Fourth Proportional to 615,200.20, 922,022.70 and 298,976.20

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Solution

The fourth proportional to 615,200.20, 922,022.70 and 298,976.20 is: 448,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,200.20 : 922,022.70 = 298,976.20 : x
  2. Step 2: Convert to fraction form
    615,200.20/922,022.70 = 298,976.20/x
  3. Step 3: Cross multiply
    615,200.20x = 922,022.70 × 298,976.20
  4. Step 4: Simplify right side
    615,200.20x = 275,662,843,159.74
  5. Step 5: Solve for x
    x = 275,662,843,159.74/615,200.20
  6. Step 6: Final answer
    x = 448,086.40

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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.