Home / 319,681.29-479,409.08-106,391.55

Finding the Fourth Proportional to 319,681.29, 479,409.08 and 106,391.55

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Solution

The fourth proportional to 319,681.29, 479,409.08 and 106,391.55 is: 159,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,681.29 : 479,409.08 = 106,391.55 : x
  2. Step 2: Convert to fraction form
    319,681.29/479,409.08 = 106,391.55/x
  3. Step 3: Cross multiply
    319,681.29x = 479,409.08 × 106,391.55
  4. Step 4: Simplify right side
    319,681.29x = 51,005,074,573.32
  5. Step 5: Solve for x
    x = 51,005,074,573.32/319,681.29
  6. Step 6: Final answer
    x = 159,549.76

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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.