Home / 289,298.40-433,753.20-131,445.60

Finding the Fourth Proportional to 289,298.40, 433,753.20 and 131,445.60

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Solution

The fourth proportional to 289,298.40, 433,753.20 and 131,445.60 is: 197,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,298.40 : 433,753.20 = 131,445.60 : x
  2. Step 2: Convert to fraction form
    289,298.40/433,753.20 = 131,445.60/x
  3. Step 3: Cross multiply
    289,298.40x = 433,753.20 × 131,445.60
  4. Step 4: Simplify right side
    289,298.40x = 57,014,949,625.92
  5. Step 5: Solve for x
    x = 57,014,949,625.92/289,298.40
  6. Step 6: Final answer
    x = 197,080.07

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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.