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Finding the Fourth Proportional to 376,852.86, 520,085.88 and 215,758.44

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Solution

The fourth proportional to 376,852.86, 520,085.88 and 215,758.44 is: 297,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,852.86 : 520,085.88 = 215,758.44 : x
  2. Step 2: Convert to fraction form
    376,852.86/520,085.88 = 215,758.44/x
  3. Step 3: Cross multiply
    376,852.86x = 520,085.88 × 215,758.44
  4. Step 4: Simplify right side
    376,852.86x = 112,212,918,134.83
  5. Step 5: Solve for x
    x = 112,212,918,134.83/376,852.86
  6. Step 6: Final answer
    x = 297,763.21

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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.