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Finding the Fourth Proportional to 331,703.08, 457,740.42 and 188,476.20

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Solution

The fourth proportional to 331,703.08, 457,740.42 and 188,476.20 is: 260,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,703.08 : 457,740.42 = 188,476.20 : x
  2. Step 2: Convert to fraction form
    331,703.08/457,740.42 = 188,476.20/x
  3. Step 3: Cross multiply
    331,703.08x = 457,740.42 × 188,476.20
  4. Step 4: Simplify right side
    331,703.08x = 86,273,174,948.00
  5. Step 5: Solve for x
    x = 86,273,174,948.00/331,703.08
  6. Step 6: Final answer
    x = 260,091.57

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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.