Home / 271,855.36-408,032.13-145,638.10

Finding the Fourth Proportional to 271,855.36, 408,032.13 and 145,638.10

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Solution

The fourth proportional to 271,855.36, 408,032.13 and 145,638.10 is: 218,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,855.36 : 408,032.13 = 145,638.10 : x
  2. Step 2: Convert to fraction form
    271,855.36/408,032.13 = 145,638.10/x
  3. Step 3: Cross multiply
    271,855.36x = 408,032.13 × 145,638.10
  4. Step 4: Simplify right side
    271,855.36x = 59,425,024,152.15
  5. Step 5: Solve for x
    x = 59,425,024,152.15/271,855.36
  6. Step 6: Final answer
    x = 218,590.59

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1.5x scale

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.