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Finding the Fourth Proportional to 145,331.10, 203,930.10 and 145,331.10

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Solution

The fourth proportional to 145,331.10, 203,930.10 and 145,331.10 is: 203,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,331.10 : 203,930.10 = 145,331.10 : x
  2. Step 2: Convert to fraction form
    145,331.10/203,930.10 = 145,331.10/x
  3. Step 3: Cross multiply
    145,331.10x = 203,930.10 × 145,331.10
  4. Step 4: Simplify right side
    145,331.10x = 29,637,385,756.11
  5. Step 5: Solve for x
    x = 29,637,385,756.11/145,331.10
  6. Step 6: Final answer
    x = 203,930.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.