Home / 306,965.04-423,820.56-192,291.12

Finding the Fourth Proportional to 306,965.04, 423,820.56 and 192,291.12

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Solution

The fourth proportional to 306,965.04, 423,820.56 and 192,291.12 is: 265,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,965.04 : 423,820.56 = 192,291.12 : x
  2. Step 2: Convert to fraction form
    306,965.04/423,820.56 = 192,291.12/x
  3. Step 3: Cross multiply
    306,965.04x = 423,820.56 × 192,291.12
  4. Step 4: Simplify right side
    306,965.04x = 81,496,930,161.43
  5. Step 5: Solve for x
    x = 81,496,930,161.43/306,965.04
  6. Step 6: Final answer
    x = 265,492.55

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1.5x scale

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.