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Finding the Fourth Proportional to 509,365.55, 764,040.47 and 130,282.94

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Solution

The fourth proportional to 509,365.55, 764,040.47 and 130,282.94 is: 195,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,365.55 : 764,040.47 = 130,282.94 : x
  2. Step 2: Convert to fraction form
    509,365.55/764,040.47 = 130,282.94/x
  3. Step 3: Cross multiply
    509,365.55x = 764,040.47 × 130,282.94
  4. Step 4: Simplify right side
    509,365.55x = 99,541,434,238.96
  5. Step 5: Solve for x
    x = 99,541,434,238.96/509,365.55
  6. Step 6: Final answer
    x = 195,422.39

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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.