Home / 439,903.20-660,027.60-173,618.40

Finding the Fourth Proportional to 439,903.20, 660,027.60 and 173,618.40

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Solution

The fourth proportional to 439,903.20, 660,027.60 and 173,618.40 is: 260,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,903.20 : 660,027.60 = 173,618.40 : x
  2. Step 2: Convert to fraction form
    439,903.20/660,027.60 = 173,618.40/x
  3. Step 3: Cross multiply
    439,903.20x = 660,027.60 × 173,618.40
  4. Step 4: Simplify right side
    439,903.20x = 114,592,935,867.84
  5. Step 5: Solve for x
    x = 114,592,935,867.84/439,903.20
  6. Step 6: Final answer
    x = 260,495.80

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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.