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Finding the Fourth Proportional to 243,381.51, 336,096.54 and 230,128.29

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Solution

The fourth proportional to 243,381.51, 336,096.54 and 230,128.29 is: 317,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,381.51 : 336,096.54 = 230,128.29 : x
  2. Step 2: Convert to fraction form
    243,381.51/336,096.54 = 230,128.29/x
  3. Step 3: Cross multiply
    243,381.51x = 336,096.54 × 230,128.29
  4. Step 4: Simplify right side
    243,381.51x = 77,345,322,025.12
  5. Step 5: Solve for x
    x = 77,345,322,025.12/243,381.51
  6. Step 6: Final answer
    x = 317,794.57

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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.