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Finding the Fourth Proportional to 230,347.30, 317,890.11 and 134,884.75

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Solution

The fourth proportional to 230,347.30, 317,890.11 and 134,884.75 is: 186,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,347.30 : 317,890.11 = 134,884.75 : x
  2. Step 2: Convert to fraction form
    230,347.30/317,890.11 = 134,884.75/x
  3. Step 3: Cross multiply
    230,347.30x = 317,890.11 × 134,884.75
  4. Step 4: Simplify right side
    230,347.30x = 42,878,528,014.82
  5. Step 5: Solve for x
    x = 42,878,528,014.82/230,347.30
  6. Step 6: Final answer
    x = 186,147.30

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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.