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Finding the Fourth Proportional to 370,224.60, 555,336.90 and 212,323.20

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Solution

The fourth proportional to 370,224.60, 555,336.90 and 212,323.20 is: 318,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,224.60 : 555,336.90 = 212,323.20 : x
  2. Step 2: Convert to fraction form
    370,224.60/555,336.90 = 212,323.20/x
  3. Step 3: Cross multiply
    370,224.60x = 555,336.90 × 212,323.20
  4. Step 4: Simplify right side
    370,224.60x = 117,910,907,686.08
  5. Step 5: Solve for x
    x = 117,910,907,686.08/370,224.60
  6. Step 6: Final answer
    x = 318,484.80

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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.