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Finding the Fourth Proportional to 421,017.58, 580,997.46 and 230,026.86

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Solution

The fourth proportional to 421,017.58, 580,997.46 and 230,026.86 is: 317,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,017.58 : 580,997.46 = 230,026.86 : x
  2. Step 2: Convert to fraction form
    421,017.58/580,997.46 = 230,026.86/x
  3. Step 3: Cross multiply
    421,017.58x = 580,997.46 × 230,026.86
  4. Step 4: Simplify right side
    421,017.58x = 133,645,021,391.78
  5. Step 5: Solve for x
    x = 133,645,021,391.78/421,017.58
  6. Step 6: Final answer
    x = 317,433.35

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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.