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Finding the Fourth Proportional to 376,257.39, 519,235.20 and 225,354.39

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Solution

The fourth proportional to 376,257.39, 519,235.20 and 225,354.39 is: 310,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,257.39 : 519,235.20 = 225,354.39 : x
  2. Step 2: Convert to fraction form
    376,257.39/519,235.20 = 225,354.39/x
  3. Step 3: Cross multiply
    376,257.39x = 519,235.20 × 225,354.39
  4. Step 4: Simplify right side
    376,257.39x = 117,011,931,762.53
  5. Step 5: Solve for x
    x = 117,011,931,762.53/376,257.39
  6. Step 6: Final answer
    x = 310,989.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.