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Finding the Fourth Proportional to 216,548, 298,865.04 and 127,124

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Solution

The fourth proportional to 216,548, 298,865.04 and 127,124 is: 175,448.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,548 : 298,865.04 = 127,124 : x
  2. Step 2: Convert to fraction form
    216,548/298,865.04 = 127,124/x
  3. Step 3: Cross multiply
    216,548x = 298,865.04 × 127,124
  4. Step 4: Simplify right side
    216,548x = 37,992,919,344.96
  5. Step 5: Solve for x
    x = 37,992,919,344.96/216,548
  6. Step 6: Final answer
    x = 175,448.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.