Home / 271,627.40-407,113.05-138,439.10

Finding the Fourth Proportional to 271,627.40, 407,113.05 and 138,439.10

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Solution

The fourth proportional to 271,627.40, 407,113.05 and 138,439.10 is: 207,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,627.40 : 407,113.05 = 138,439.10 : x
  2. Step 2: Convert to fraction form
    271,627.40/407,113.05 = 138,439.10/x
  3. Step 3: Cross multiply
    271,627.40x = 407,113.05 × 138,439.10
  4. Step 4: Simplify right side
    271,627.40x = 56,360,364,240.26
  5. Step 5: Solve for x
    x = 56,360,364,240.26/271,627.40
  6. Step 6: Final answer
    x = 207,491.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.