Home / 283,296.23-390,949.03-155,971.83

Finding the Fourth Proportional to 283,296.23, 390,949.03 and 155,971.83

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Solution

The fourth proportional to 283,296.23, 390,949.03 and 155,971.83 is: 215,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,296.23 : 390,949.03 = 155,971.83 : x
  2. Step 2: Convert to fraction form
    283,296.23/390,949.03 = 155,971.83/x
  3. Step 3: Cross multiply
    283,296.23x = 390,949.03 × 155,971.83
  4. Step 4: Simplify right side
    283,296.23x = 60,977,035,107.76
  5. Step 5: Solve for x
    x = 60,977,035,107.76/283,296.23
  6. Step 6: Final answer
    x = 215,241.25

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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.