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Finding the Fourth Proportional to 402,594.82, 555,587.76 and 221,314.39

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Solution

The fourth proportional to 402,594.82, 555,587.76 and 221,314.39 is: 305,417.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,594.82 : 555,587.76 = 221,314.39 : x
  2. Step 2: Convert to fraction form
    402,594.82/555,587.76 = 221,314.39/x
  3. Step 3: Cross multiply
    402,594.82x = 555,587.76 × 221,314.39
  4. Step 4: Simplify right side
    402,594.82x = 122,959,566,195.87
  5. Step 5: Solve for x
    x = 122,959,566,195.87/402,594.82
  6. Step 6: Final answer
    x = 305,417.66

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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.