Home / 283,408.17-391,095.29-154,343.73

Finding the Fourth Proportional to 283,408.17, 391,095.29 and 154,343.73

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Solution

The fourth proportional to 283,408.17, 391,095.29 and 154,343.73 is: 212,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,408.17 : 391,095.29 = 154,343.73 : x
  2. Step 2: Convert to fraction form
    283,408.17/391,095.29 = 154,343.73/x
  3. Step 3: Cross multiply
    283,408.17x = 391,095.29 × 154,343.73
  4. Step 4: Simplify right side
    283,408.17x = 60,363,104,628.40
  5. Step 5: Solve for x
    x = 60,363,104,628.40/283,408.17
  6. Step 6: Final answer
    x = 212,990.00

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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.