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Finding the Fourth Proportional to 509,751.37, 764,718.99 and 210,065.14

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Solution

The fourth proportional to 509,751.37, 764,718.99 and 210,065.14 is: 315,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,751.37 : 764,718.99 = 210,065.14 : x
  2. Step 2: Convert to fraction form
    509,751.37/764,718.99 = 210,065.14/x
  3. Step 3: Cross multiply
    509,751.37x = 764,718.99 × 210,065.14
  4. Step 4: Simplify right side
    509,751.37x = 160,640,801,695.01
  5. Step 5: Solve for x
    x = 160,640,801,695.01/509,751.37
  6. Step 6: Final answer
    x = 315,135.60

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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.