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Finding the Fourth Proportional to 331,248.62, 457,060.11 and 210,409.58

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Solution

The fourth proportional to 331,248.62, 457,060.11 and 210,409.58 is: 290,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,248.62 : 457,060.11 = 210,409.58 : x
  2. Step 2: Convert to fraction form
    331,248.62/457,060.11 = 210,409.58/x
  3. Step 3: Cross multiply
    331,248.62x = 457,060.11 × 210,409.58
  4. Step 4: Simplify right side
    331,248.62x = 96,169,825,779.85
  5. Step 5: Solve for x
    x = 96,169,825,779.85/331,248.62
  6. Step 6: Final answer
    x = 290,325.21

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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.