Home / 283,140.56-390,742.19-154,087.36

Finding the Fourth Proportional to 283,140.56, 390,742.19 and 154,087.36

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Solution

The fourth proportional to 283,140.56, 390,742.19 and 154,087.36 is: 212,645.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,140.56 : 390,742.19 = 154,087.36 : x
  2. Step 2: Convert to fraction form
    283,140.56/390,742.19 = 154,087.36/x
  3. Step 3: Cross multiply
    283,140.56x = 390,742.19 × 154,087.36
  4. Step 4: Simplify right side
    283,140.56x = 60,208,429,773.57
  5. Step 5: Solve for x
    x = 60,208,429,773.57/283,140.56
  6. Step 6: Final answer
    x = 212,645.02

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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.