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Finding the Fourth Proportional to 291,311.58, 437,018.62 and 120,532.80

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Solution

The fourth proportional to 291,311.58, 437,018.62 and 120,532.80 is: 180,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,311.58 : 437,018.62 = 120,532.80 : x
  2. Step 2: Convert to fraction form
    291,311.58/437,018.62 = 120,532.80/x
  3. Step 3: Cross multiply
    291,311.58x = 437,018.62 × 120,532.80
  4. Step 4: Simplify right side
    291,311.58x = 52,675,077,920.74
  5. Step 5: Solve for x
    x = 52,675,077,920.74/291,311.58
  6. Step 6: Final answer
    x = 180,820.41

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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.