Home / 358,865.40-538,298.10-252,577.20

Finding the Fourth Proportional to 358,865.40, 538,298.10 and 252,577.20

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Solution

The fourth proportional to 358,865.40, 538,298.10 and 252,577.20 is: 378,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,865.40 : 538,298.10 = 252,577.20 : x
  2. Step 2: Convert to fraction form
    358,865.40/538,298.10 = 252,577.20/x
  3. Step 3: Cross multiply
    358,865.40x = 538,298.10 × 252,577.20
  4. Step 4: Simplify right side
    358,865.40x = 135,961,826,863.32
  5. Step 5: Solve for x
    x = 135,961,826,863.32/358,865.40
  6. Step 6: Final answer
    x = 378,865.80

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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.