Home / 283,977.50-391,890.07-154,918.74

Finding the Fourth Proportional to 283,977.50, 391,890.07 and 154,918.74

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Solution

The fourth proportional to 283,977.50, 391,890.07 and 154,918.74 is: 213,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,977.50 : 391,890.07 = 154,918.74 : x
  2. Step 2: Convert to fraction form
    283,977.50/391,890.07 = 154,918.74/x
  3. Step 3: Cross multiply
    283,977.50x = 391,890.07 × 154,918.74
  4. Step 4: Simplify right side
    283,977.50x = 60,711,114,655.28
  5. Step 5: Solve for x
    x = 60,711,114,655.28/283,977.50
  6. Step 6: Final answer
    x = 213,788.47

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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.