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Finding the Fourth Proportional to 282,057.80, 423,086.70 and 268,935.80

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Solution

The fourth proportional to 282,057.80, 423,086.70 and 268,935.80 is: 403,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,057.80 : 423,086.70 = 268,935.80 : x
  2. Step 2: Convert to fraction form
    282,057.80/423,086.70 = 268,935.80/x
  3. Step 3: Cross multiply
    282,057.80x = 423,086.70 × 268,935.80
  4. Step 4: Simplify right side
    282,057.80x = 113,783,160,133.86
  5. Step 5: Solve for x
    x = 113,783,160,133.86/282,057.80
  6. Step 6: Final answer
    x = 403,403.70

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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.