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Finding the Fourth Proportional to 272,411.84, 375,931.68 and 153,179.84

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Solution

The fourth proportional to 272,411.84, 375,931.68 and 153,179.84 is: 211,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,411.84 : 375,931.68 = 153,179.84 : x
  2. Step 2: Convert to fraction form
    272,411.84/375,931.68 = 153,179.84/x
  3. Step 3: Cross multiply
    272,411.84x = 375,931.68 × 153,179.84
  4. Step 4: Simplify right side
    272,411.84x = 57,585,154,593.33
  5. Step 5: Solve for x
    x = 57,585,154,593.33/272,411.84
  6. Step 6: Final answer
    x = 211,390.06

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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.