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Finding the Fourth Proportional to 243,712.23, 335,575.21 and 213,327.51

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Solution

The fourth proportional to 243,712.23, 335,575.21 and 213,327.51 is: 293,737.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,712.23 : 335,575.21 = 213,327.51 : x
  2. Step 2: Convert to fraction form
    243,712.23/335,575.21 = 213,327.51/x
  3. Step 3: Cross multiply
    243,712.23x = 335,575.21 × 213,327.51
  4. Step 4: Simplify right side
    243,712.23x = 71,587,423,967.03
  5. Step 5: Solve for x
    x = 71,587,423,967.03/243,712.23
  6. Step 6: Final answer
    x = 293,737.51

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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.