Home / 509,416.15-764,150.35-130,340.10

Finding the Fourth Proportional to 509,416.15, 764,150.35 and 130,340.10

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Solution

The fourth proportional to 509,416.15, 764,150.35 and 130,340.10 is: 195,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,416.15 : 764,150.35 = 130,340.10 : x
  2. Step 2: Convert to fraction form
    509,416.15/764,150.35 = 130,340.10/x
  3. Step 3: Cross multiply
    509,416.15x = 764,150.35 × 130,340.10
  4. Step 4: Simplify right side
    509,416.15x = 99,599,429,213.28
  5. Step 5: Solve for x
    x = 99,599,429,213.28/509,416.15
  6. Step 6: Final answer
    x = 195,516.83

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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.