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Finding the Fourth Proportional to 291,408.22, 437,410.47 and 240,645.55

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Solution

The fourth proportional to 291,408.22, 437,410.47 and 240,645.55 is: 361,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,408.22 : 437,410.47 = 240,645.55 : x
  2. Step 2: Convert to fraction form
    291,408.22/437,410.47 = 240,645.55/x
  3. Step 3: Cross multiply
    291,408.22x = 437,410.47 × 240,645.55
  4. Step 4: Simplify right side
    291,408.22x = 105,260,883,128.91
  5. Step 5: Solve for x
    x = 105,260,883,128.91/291,408.22
  6. Step 6: Final answer
    x = 361,214.53

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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.