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Finding the Fourth Proportional to 282,373.53, 421,069.38 and 243,182.49

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Solution

The fourth proportional to 282,373.53, 421,069.38 and 243,182.49 is: 362,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,373.53 : 421,069.38 = 243,182.49 : x
  2. Step 2: Convert to fraction form
    282,373.53/421,069.38 = 243,182.49/x
  3. Step 3: Cross multiply
    282,373.53x = 421,069.38 × 243,182.49
  4. Step 4: Simplify right side
    282,373.53x = 102,396,700,291.16
  5. Step 5: Solve for x
    x = 102,396,700,291.16/282,373.53
  6. Step 6: Final answer
    x = 362,628.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.