Home / 320,935.40-442,904.70-177,695.46

Finding the Fourth Proportional to 320,935.40, 442,904.70 and 177,695.46

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Solution

The fourth proportional to 320,935.40, 442,904.70 and 177,695.46 is: 245,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,935.40 : 442,904.70 = 177,695.46 : x
  2. Step 2: Convert to fraction form
    320,935.40/442,904.70 = 177,695.46/x
  3. Step 3: Cross multiply
    320,935.40x = 442,904.70 × 177,695.46
  4. Step 4: Simplify right side
    320,935.40x = 78,702,154,402.66
  5. Step 5: Solve for x
    x = 78,702,154,402.66/320,935.40
  6. Step 6: Final answer
    x = 245,227.40

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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.