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Finding the Fourth Proportional to 253,011.32, 379,582.72 and 75,518.32

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Solution

The fourth proportional to 253,011.32, 379,582.72 and 75,518.32 is: 113,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,011.32 : 379,582.72 = 75,518.32 : x
  2. Step 2: Convert to fraction form
    253,011.32/379,582.72 = 75,518.32/x
  3. Step 3: Cross multiply
    253,011.32x = 379,582.72 × 75,518.32
  4. Step 4: Simplify right side
    253,011.32x = 28,665,449,315.43
  5. Step 5: Solve for x
    x = 28,665,449,315.43/253,011.32
  6. Step 6: Final answer
    x = 113,297.10

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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.