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Finding the Fourth Proportional to 561,832.20, 842,748.30 and 187,855.20

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Solution

The fourth proportional to 561,832.20, 842,748.30 and 187,855.20 is: 281,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,832.20 : 842,748.30 = 187,855.20 : x
  2. Step 2: Convert to fraction form
    561,832.20/842,748.30 = 187,855.20/x
  3. Step 3: Cross multiply
    561,832.20x = 842,748.30 × 187,855.20
  4. Step 4: Simplify right side
    561,832.20x = 158,314,650,446.16
  5. Step 5: Solve for x
    x = 158,314,650,446.16/561,832.20
  6. Step 6: Final answer
    x = 281,782.80

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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.