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Finding the Fourth Proportional to 289,190.80, 433,267.80 and 247,718.80

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Solution

The fourth proportional to 289,190.80, 433,267.80 and 247,718.80 is: 371,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,190.80 : 433,267.80 = 247,718.80 : x
  2. Step 2: Convert to fraction form
    289,190.80/433,267.80 = 247,718.80/x
  3. Step 3: Cross multiply
    289,190.80x = 433,267.80 × 247,718.80
  4. Step 4: Simplify right side
    289,190.80x = 107,328,579,494.64
  5. Step 5: Solve for x
    x = 107,328,579,494.64/289,190.80
  6. Step 6: Final answer
    x = 371,134.14

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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.