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Finding the Fourth Proportional to 289,019.30, 433,237.35 and 131,360.90

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Solution

The fourth proportional to 289,019.30, 433,237.35 and 131,360.90 is: 196,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,019.30 : 433,237.35 = 131,360.90 : x
  2. Step 2: Convert to fraction form
    289,019.30/433,237.35 = 131,360.90/x
  3. Step 3: Cross multiply
    289,019.30x = 433,237.35 × 131,360.90
  4. Step 4: Simplify right side
    289,019.30x = 56,910,448,209.62
  5. Step 5: Solve for x
    x = 56,910,448,209.62/289,019.30
  6. Step 6: Final answer
    x = 196,908.82

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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.