Home / 307,199.20-423,921.28-171,248

Finding the Fourth Proportional to 307,199.20, 423,921.28 and 171,248

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Solution

The fourth proportional to 307,199.20, 423,921.28 and 171,248 is: 236,314.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,199.20 : 423,921.28 = 171,248 : x
  2. Step 2: Convert to fraction form
    307,199.20/423,921.28 = 171,248/x
  3. Step 3: Cross multiply
    307,199.20x = 423,921.28 × 171,248
  4. Step 4: Simplify right side
    307,199.20x = 72,595,671,357.44
  5. Step 5: Solve for x
    x = 72,595,671,357.44/307,199.20
  6. Step 6: Final answer
    x = 236,314.65

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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.