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Finding the Fourth Proportional to 231,316.80, 346,975.20 and 104,908.20

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Solution

The fourth proportional to 231,316.80, 346,975.20 and 104,908.20 is: 157,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,316.80 : 346,975.20 = 104,908.20 : x
  2. Step 2: Convert to fraction form
    231,316.80/346,975.20 = 104,908.20/x
  3. Step 3: Cross multiply
    231,316.80x = 346,975.20 × 104,908.20
  4. Step 4: Simplify right side
    231,316.80x = 36,400,543,676.64
  5. Step 5: Solve for x
    x = 36,400,543,676.64/231,316.80
  6. Step 6: Final answer
    x = 157,362.30

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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.