Home / 282,839.69-390,325.45-153,785.54

Finding the Fourth Proportional to 282,839.69, 390,325.45 and 153,785.54

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Solution

The fourth proportional to 282,839.69, 390,325.45 and 153,785.54 is: 212,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,839.69 : 390,325.45 = 153,785.54 : x
  2. Step 2: Convert to fraction form
    282,839.69/390,325.45 = 153,785.54/x
  3. Step 3: Cross multiply
    282,839.69x = 390,325.45 × 153,785.54
  4. Step 4: Simplify right side
    282,839.69x = 60,026,410,103.99
  5. Step 5: Solve for x
    x = 60,026,410,103.99/282,839.69
  6. Step 6: Final answer
    x = 212,227.68

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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.