Home / 402,192.96-555,032.94-220,921.64

Finding the Fourth Proportional to 402,192.96, 555,032.94 and 220,921.64

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Solution

The fourth proportional to 402,192.96, 555,032.94 and 220,921.64 is: 304,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,192.96 : 555,032.94 = 220,921.64 : x
  2. Step 2: Convert to fraction form
    402,192.96/555,032.94 = 220,921.64/x
  3. Step 3: Cross multiply
    402,192.96x = 555,032.94 × 220,921.64
  4. Step 4: Simplify right side
    402,192.96x = 122,618,787,358.82
  5. Step 5: Solve for x
    x = 122,618,787,358.82/402,192.96
  6. Step 6: Final answer
    x = 304,875.52

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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.