Home / 320,972.92-442,941.84-185,005.78

Finding the Fourth Proportional to 320,972.92, 442,941.84 and 185,005.78

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Solution

The fourth proportional to 320,972.92, 442,941.84 and 185,005.78 is: 255,307.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,972.92 : 442,941.84 = 185,005.78 : x
  2. Step 2: Convert to fraction form
    320,972.92/442,941.84 = 185,005.78/x
  3. Step 3: Cross multiply
    320,972.92x = 442,941.84 × 185,005.78
  4. Step 4: Simplify right side
    320,972.92x = 81,946,800,603.84
  5. Step 5: Solve for x
    x = 81,946,800,603.84/320,972.92
  6. Step 6: Final answer
    x = 255,307.52

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1.5x scale

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.