Home / 283,030.34-390,589.19-153,976.85

Finding the Fourth Proportional to 283,030.34, 390,589.19 and 153,976.85

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Solution

The fourth proportional to 283,030.34, 390,589.19 and 153,976.85 is: 212,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,030.34 : 390,589.19 = 153,976.85 : x
  2. Step 2: Convert to fraction form
    283,030.34/390,589.19 = 153,976.85/x
  3. Step 3: Cross multiply
    283,030.34x = 390,589.19 × 153,976.85
  4. Step 4: Simplify right side
    283,030.34x = 60,141,692,439.54
  5. Step 5: Solve for x
    x = 60,141,692,439.54/283,030.34
  6. Step 6: Final answer
    x = 212,492.04

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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.