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Finding the Fourth Proportional to 253,652.87, 380,482.50 and 76,149.57

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Solution

The fourth proportional to 253,652.87, 380,482.50 and 76,149.57 is: 114,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,652.87 : 380,482.50 = 76,149.57 : x
  2. Step 2: Convert to fraction form
    253,652.87/380,482.50 = 76,149.57/x
  3. Step 3: Cross multiply
    253,652.87x = 380,482.50 × 76,149.57
  4. Step 4: Simplify right side
    253,652.87x = 28,973,578,767.53
  5. Step 5: Solve for x
    x = 28,973,578,767.53/253,652.87
  6. Step 6: Final answer
    x = 114,225.32

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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.