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Finding the Fourth Proportional to 363,929.56, 546,063.43 and 139,215.72

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Solution

The fourth proportional to 363,929.56, 546,063.43 and 139,215.72 is: 208,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,929.56 : 546,063.43 = 139,215.72 : x
  2. Step 2: Convert to fraction form
    363,929.56/546,063.43 = 139,215.72/x
  3. Step 3: Cross multiply
    363,929.56x = 546,063.43 × 139,215.72
  4. Step 4: Simplify right side
    363,929.56x = 76,020,610,494.76
  5. Step 5: Solve for x
    x = 76,020,610,494.76/363,929.56
  6. Step 6: Final answer
    x = 208,888.25

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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.