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Finding the Fourth Proportional to 243,314.34, 335,774.58 and 135,888.36

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Solution

The fourth proportional to 243,314.34, 335,774.58 and 135,888.36 is: 187,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,314.34 : 335,774.58 = 135,888.36 : x
  2. Step 2: Convert to fraction form
    243,314.34/335,774.58 = 135,888.36/x
  3. Step 3: Cross multiply
    243,314.34x = 335,774.58 × 135,888.36
  4. Step 4: Simplify right side
    243,314.34x = 45,627,857,005.89
  5. Step 5: Solve for x
    x = 45,627,857,005.89/243,314.34
  6. Step 6: Final answer
    x = 187,526.38

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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.