Home / 283,389.77-391,070.27-154,325.66

Finding the Fourth Proportional to 283,389.77, 391,070.27 and 154,325.66

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Solution

The fourth proportional to 283,389.77, 391,070.27 and 154,325.66 is: 212,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,389.77 : 391,070.27 = 154,325.66 : x
  2. Step 2: Convert to fraction form
    283,389.77/391,070.27 = 154,325.66/x
  3. Step 3: Cross multiply
    283,389.77x = 391,070.27 × 154,325.66
  4. Step 4: Simplify right side
    283,389.77x = 60,352,177,730.18
  5. Step 5: Solve for x
    x = 60,352,177,730.18/283,389.77
  6. Step 6: Final answer
    x = 212,965.27

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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.