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Finding the Fourth Proportional to 386,227.73, 579,501.63 and 208,525.88

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Solution

The fourth proportional to 386,227.73, 579,501.63 and 208,525.88 is: 312,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,227.73 : 579,501.63 = 208,525.88 : x
  2. Step 2: Convert to fraction form
    386,227.73/579,501.63 = 208,525.88/x
  3. Step 3: Cross multiply
    386,227.73x = 579,501.63 × 208,525.88
  4. Step 4: Simplify right side
    386,227.73x = 120,841,084,459.68
  5. Step 5: Solve for x
    x = 120,841,084,459.68/386,227.73
  6. Step 6: Final answer
    x = 312,875.22

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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.