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Finding the Fourth Proportional to 272,730, 376,401.96 and 153,521.04

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Solution

The fourth proportional to 272,730, 376,401.96 and 153,521.04 is: 211,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,730 : 376,401.96 = 153,521.04 : x
  2. Step 2: Convert to fraction form
    272,730/376,401.96 = 153,521.04/x
  3. Step 3: Cross multiply
    272,730x = 376,401.96 × 153,521.04
  4. Step 4: Simplify right side
    272,730x = 57,785,620,357.24
  5. Step 5: Solve for x
    x = 57,785,620,357.24/272,730
  6. Step 6: Final answer
    x = 211,878.49

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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.