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Finding the Fourth Proportional to 272,271.78, 375,704.19 and 157,532.58

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Solution

The fourth proportional to 272,271.78, 375,704.19 and 157,532.58 is: 217,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,271.78 : 375,704.19 = 157,532.58 : x
  2. Step 2: Convert to fraction form
    272,271.78/375,704.19 = 157,532.58/x
  3. Step 3: Cross multiply
    272,271.78x = 375,704.19 × 157,532.58
  4. Step 4: Simplify right side
    272,271.78x = 59,185,650,367.51
  5. Step 5: Solve for x
    x = 59,185,650,367.51/272,271.78
  6. Step 6: Final answer
    x = 217,377.10

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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.