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Finding the Fourth Proportional to 243,711.48, 335,574.18 and 213,326.76

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Solution

The fourth proportional to 243,711.48, 335,574.18 and 213,326.76 is: 293,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,711.48 : 335,574.18 = 213,326.76 : x
  2. Step 2: Convert to fraction form
    243,711.48/335,574.18 = 213,326.76/x
  3. Step 3: Cross multiply
    243,711.48x = 335,574.18 × 213,326.76
  4. Step 4: Simplify right side
    243,711.48x = 71,586,952,559.06
  5. Step 5: Solve for x
    x = 71,586,952,559.06/243,711.48
  6. Step 6: Final answer
    x = 293,736.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.