Home / 282,624.40-390,021.60-155,308.24

Finding the Fourth Proportional to 282,624.40, 390,021.60 and 155,308.24

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Solution

The fourth proportional to 282,624.40, 390,021.60 and 155,308.24 is: 214,325.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,624.40 : 390,021.60 = 155,308.24 : x
  2. Step 2: Convert to fraction form
    282,624.40/390,021.60 = 155,308.24/x
  3. Step 3: Cross multiply
    282,624.40x = 390,021.60 × 155,308.24
  4. Step 4: Simplify right side
    282,624.40x = 60,573,568,257.98
  5. Step 5: Solve for x
    x = 60,573,568,257.98/282,624.40
  6. Step 6: Final answer
    x = 214,325.33

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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.