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Finding the Fourth Proportional to 243,256.23, 335,690.46 and 135,828.09

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Solution

The fourth proportional to 243,256.23, 335,690.46 and 135,828.09 is: 187,441.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,256.23 : 335,690.46 = 135,828.09 : x
  2. Step 2: Convert to fraction form
    243,256.23/335,690.46 = 135,828.09/x
  3. Step 3: Cross multiply
    243,256.23x = 335,690.46 × 135,828.09
  4. Step 4: Simplify right side
    243,256.23x = 45,596,194,013.02
  5. Step 5: Solve for x
    x = 45,596,194,013.02/243,256.23
  6. Step 6: Final answer
    x = 187,441.01

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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.