Home / 426,142.42-639,498.99-176,824.66

Finding the Fourth Proportional to 426,142.42, 639,498.99 and 176,824.66

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Solution

The fourth proportional to 426,142.42, 639,498.99 and 176,824.66 is: 265,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,142.42 : 639,498.99 = 176,824.66 : x
  2. Step 2: Convert to fraction form
    426,142.42/639,498.99 = 176,824.66/x
  3. Step 3: Cross multiply
    426,142.42x = 639,498.99 × 176,824.66
  4. Step 4: Simplify right side
    426,142.42x = 113,079,191,477.09
  5. Step 5: Solve for x
    x = 113,079,191,477.09/426,142.42
  6. Step 6: Final answer
    x = 265,355.40

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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.