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Finding the Fourth Proportional to 281,516.56, 388,500.42 and 158,999.12

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Solution

The fourth proportional to 281,516.56, 388,500.42 and 158,999.12 is: 219,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,516.56 : 388,500.42 = 158,999.12 : x
  2. Step 2: Convert to fraction form
    281,516.56/388,500.42 = 158,999.12/x
  3. Step 3: Cross multiply
    281,516.56x = 388,500.42 × 158,999.12
  4. Step 4: Simplify right side
    281,516.56x = 61,771,224,899.63
  5. Step 5: Solve for x
    x = 61,771,224,899.63/281,516.56
  6. Step 6: Final answer
    x = 219,423.06

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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.