Home / 294,981.60-442,438.32-81,765.36

Finding the Fourth Proportional to 294,981.60, 442,438.32 and 81,765.36

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Solution

The fourth proportional to 294,981.60, 442,438.32 and 81,765.36 is: 122,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,981.60 : 442,438.32 = 81,765.36 : x
  2. Step 2: Convert to fraction form
    294,981.60/442,438.32 = 81,765.36/x
  3. Step 3: Cross multiply
    294,981.60x = 442,438.32 × 81,765.36
  4. Step 4: Simplify right side
    294,981.60x = 36,176,128,512.60
  5. Step 5: Solve for x
    x = 36,176,128,512.60/294,981.60
  6. Step 6: Final answer
    x = 122,638.59

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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.