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Finding the Fourth Proportional to 230,090.40, 317,462.76 and 134,620.56

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Solution

The fourth proportional to 230,090.40, 317,462.76 and 134,620.56 is: 185,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,090.40 : 317,462.76 = 134,620.56 : x
  2. Step 2: Convert to fraction form
    230,090.40/317,462.76 = 134,620.56/x
  3. Step 3: Cross multiply
    230,090.40x = 317,462.76 × 134,620.56
  4. Step 4: Simplify right side
    230,090.40x = 42,737,014,530.35
  5. Step 5: Solve for x
    x = 42,737,014,530.35/230,090.40
  6. Step 6: Final answer
    x = 185,740.10

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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.