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Finding the Fourth Proportional to 230,807.02, 318,566.82 and 135,344.47

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Solution

The fourth proportional to 230,807.02, 318,566.82 and 135,344.47 is: 186,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,807.02 : 318,566.82 = 135,344.47 : x
  2. Step 2: Convert to fraction form
    230,807.02/318,566.82 = 135,344.47/x
  3. Step 3: Cross multiply
    230,807.02x = 318,566.82 × 135,344.47
  4. Step 4: Simplify right side
    230,807.02x = 43,116,257,720.92
  5. Step 5: Solve for x
    x = 43,116,257,720.92/230,807.02
  6. Step 6: Final answer
    x = 186,806.53

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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.