Home / 319,900.27-479,849.02-130,318.36

Finding the Fourth Proportional to 319,900.27, 479,849.02 and 130,318.36

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Solution

The fourth proportional to 319,900.27, 479,849.02 and 130,318.36 is: 195,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,900.27 : 479,849.02 = 130,318.36 : x
  2. Step 2: Convert to fraction form
    319,900.27/479,849.02 = 130,318.36/x
  3. Step 3: Cross multiply
    319,900.27x = 479,849.02 × 130,318.36
  4. Step 4: Simplify right side
    319,900.27x = 62,533,137,334.01
  5. Step 5: Solve for x
    x = 62,533,137,334.01/319,900.27
  6. Step 6: Final answer
    x = 195,476.98

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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.