Home / 319,870.52-479,806.32-109,510.28

Finding the Fourth Proportional to 319,870.52, 479,806.32 and 109,510.28

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Solution

The fourth proportional to 319,870.52, 479,806.32 and 109,510.28 is: 164,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,870.52 : 479,806.32 = 109,510.28 : x
  2. Step 2: Convert to fraction form
    319,870.52/479,806.32 = 109,510.28/x
  3. Step 3: Cross multiply
    319,870.52x = 479,806.32 × 109,510.28
  4. Step 4: Simplify right side
    319,870.52x = 52,543,724,448.97
  5. Step 5: Solve for x
    x = 52,543,724,448.97/319,870.52
  6. Step 6: Final answer
    x = 164,265.60

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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.