Home / 261,024.20-391,536.30-208,536.20

Finding the Fourth Proportional to 261,024.20, 391,536.30 and 208,536.20

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Solution

The fourth proportional to 261,024.20, 391,536.30 and 208,536.20 is: 312,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,024.20 : 391,536.30 = 208,536.20 : x
  2. Step 2: Convert to fraction form
    261,024.20/391,536.30 = 208,536.20/x
  3. Step 3: Cross multiply
    261,024.20x = 391,536.30 × 208,536.20
  4. Step 4: Simplify right side
    261,024.20x = 81,649,492,164.06
  5. Step 5: Solve for x
    x = 81,649,492,164.06/261,024.20
  6. Step 6: Final answer
    x = 312,804.30

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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.