Home / 289,255.90-433,689.45-131,403.10

Finding the Fourth Proportional to 289,255.90, 433,689.45 and 131,403.10

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Solution

The fourth proportional to 289,255.90, 433,689.45 and 131,403.10 is: 197,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,255.90 : 433,689.45 = 131,403.10 : x
  2. Step 2: Convert to fraction form
    289,255.90/433,689.45 = 131,403.10/x
  3. Step 3: Cross multiply
    289,255.90x = 433,689.45 × 131,403.10
  4. Step 4: Simplify right side
    289,255.90x = 56,988,138,167.30
  5. Step 5: Solve for x
    x = 56,988,138,167.30/289,255.90
  6. Step 6: Final answer
    x = 197,016.34

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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.