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Finding the Fourth Proportional to 271,840, 375,139.20 and 152,608

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Solution

The fourth proportional to 271,840, 375,139.20 and 152,608 is: 210,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,840 : 375,139.20 = 152,608 : x
  2. Step 2: Convert to fraction form
    271,840/375,139.20 = 152,608/x
  3. Step 3: Cross multiply
    271,840x = 375,139.20 × 152,608
  4. Step 4: Simplify right side
    271,840x = 57,249,243,033.60
  5. Step 5: Solve for x
    x = 57,249,243,033.60/271,840
  6. Step 6: Final answer
    x = 210,599.04

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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.