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Finding the Fourth Proportional to 288,745.56, 433,153.98 and 99,244.44

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Solution

The fourth proportional to 288,745.56, 433,153.98 and 99,244.44 is: 148,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,745.56 : 433,153.98 = 99,244.44 : x
  2. Step 2: Convert to fraction form
    288,745.56/433,153.98 = 99,244.44/x
  3. Step 3: Cross multiply
    288,745.56x = 433,153.98 × 99,244.44
  4. Step 4: Simplify right side
    288,745.56x = 42,988,124,178.87
  5. Step 5: Solve for x
    x = 42,988,124,178.87/288,745.56
  6. Step 6: Final answer
    x = 148,878.91

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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.