Home / 283,033.05-390,588.14-153,974.33

Finding the Fourth Proportional to 283,033.05, 390,588.14 and 153,974.33

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Solution

The fourth proportional to 283,033.05, 390,588.14 and 153,974.33 is: 212,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,033.05 : 390,588.14 = 153,974.33 : x
  2. Step 2: Convert to fraction form
    283,033.05/390,588.14 = 153,974.33/x
  3. Step 3: Cross multiply
    283,033.05x = 390,588.14 × 153,974.33
  4. Step 4: Simplify right side
    283,033.05x = 60,140,547,162.45
  5. Step 5: Solve for x
    x = 60,140,547,162.45/283,033.05
  6. Step 6: Final answer
    x = 212,485.96

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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.