Home / 331,431.90-497,212.65-131,718.30

Finding the Fourth Proportional to 331,431.90, 497,212.65 and 131,718.30

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Solution

The fourth proportional to 331,431.90, 497,212.65 and 131,718.30 is: 197,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,431.90 : 497,212.65 = 131,718.30 : x
  2. Step 2: Convert to fraction form
    331,431.90/497,212.65 = 131,718.30/x
  3. Step 3: Cross multiply
    331,431.90x = 497,212.65 × 131,718.30
  4. Step 4: Simplify right side
    331,431.90x = 65,492,004,996.50
  5. Step 5: Solve for x
    x = 65,492,004,996.50/331,431.90
  6. Step 6: Final answer
    x = 197,603.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.