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Finding the Fourth Proportional to 230,422.91, 345,681.41 and 130,627.67

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Solution

The fourth proportional to 230,422.91, 345,681.41 and 130,627.67 is: 195,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,422.91 : 345,681.41 = 130,627.67 : x
  2. Step 2: Convert to fraction form
    230,422.91/345,681.41 = 130,627.67/x
  3. Step 3: Cross multiply
    230,422.91x = 345,681.41 × 130,627.67
  4. Step 4: Simplify right side
    230,422.91x = 45,155,554,769.07
  5. Step 5: Solve for x
    x = 45,155,554,769.07/230,422.91
  6. Step 6: Final answer
    x = 195,968.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.