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Finding the Fourth Proportional to 230,070.94, 345,089.90 and 72,344.50

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Solution

The fourth proportional to 230,070.94, 345,089.90 and 72,344.50 is: 108,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,070.94 : 345,089.90 = 72,344.50 : x
  2. Step 2: Convert to fraction form
    230,070.94/345,089.90 = 72,344.50/x
  3. Step 3: Cross multiply
    230,070.94x = 345,089.90 × 72,344.50
  4. Step 4: Simplify right side
    230,070.94x = 24,965,356,270.55
  5. Step 5: Solve for x
    x = 24,965,356,270.55/230,070.94
  6. Step 6: Final answer
    x = 108,511.56

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1.5x scale

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.