Home / 330,140.20-493,898.10-286,254.40

Finding the Fourth Proportional to 330,140.20, 493,898.10 and 286,254.40

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Solution

The fourth proportional to 330,140.20, 493,898.10 and 286,254.40 is: 428,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,140.20 : 493,898.10 = 286,254.40 : x
  2. Step 2: Convert to fraction form
    330,140.20/493,898.10 = 286,254.40/x
  3. Step 3: Cross multiply
    330,140.20x = 493,898.10 × 286,254.40
  4. Step 4: Simplify right side
    330,140.20x = 141,380,504,276.64
  5. Step 5: Solve for x
    x = 141,380,504,276.64/330,140.20
  6. Step 6: Final answer
    x = 428,243.83

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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.