Home / 320,569.12-442,394.40-177,342.24

Finding the Fourth Proportional to 320,569.12, 442,394.40 and 177,342.24

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Solution

The fourth proportional to 320,569.12, 442,394.40 and 177,342.24 is: 244,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,569.12 : 442,394.40 = 177,342.24 : x
  2. Step 2: Convert to fraction form
    320,569.12/442,394.40 = 177,342.24/x
  3. Step 3: Cross multiply
    320,569.12x = 442,394.40 × 177,342.24
  4. Step 4: Simplify right side
    320,569.12x = 78,455,213,859.46
  5. Step 5: Solve for x
    x = 78,455,213,859.46/320,569.12
  6. Step 6: Final answer
    x = 244,737.28

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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.