Home / 283,564.20-425,346.30-212,705.40

Finding the Fourth Proportional to 283,564.20, 425,346.30 and 212,705.40

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Solution

The fourth proportional to 283,564.20, 425,346.30 and 212,705.40 is: 319,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,564.20 : 425,346.30 = 212,705.40 : x
  2. Step 2: Convert to fraction form
    283,564.20/425,346.30 = 212,705.40/x
  3. Step 3: Cross multiply
    283,564.20x = 425,346.30 × 212,705.40
  4. Step 4: Simplify right side
    283,564.20x = 90,473,454,880.02
  5. Step 5: Solve for x
    x = 90,473,454,880.02/283,564.20
  6. Step 6: Final answer
    x = 319,058.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.