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Finding the Fourth Proportional to 319,510.10, 479,265.15 and 97,865.30

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Solution

The fourth proportional to 319,510.10, 479,265.15 and 97,865.30 is: 146,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,510.10 : 479,265.15 = 97,865.30 : x
  2. Step 2: Convert to fraction form
    319,510.10/479,265.15 = 97,865.30/x
  3. Step 3: Cross multiply
    319,510.10x = 479,265.15 × 97,865.30
  4. Step 4: Simplify right side
    319,510.10x = 46,903,427,684.30
  5. Step 5: Solve for x
    x = 46,903,427,684.30/319,510.10
  6. Step 6: Final answer
    x = 146,797.95

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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.