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Finding the Fourth Proportional to 289,886.58, 399,967.35 and 167,348.94

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Solution

The fourth proportional to 289,886.58, 399,967.35 and 167,348.94 is: 230,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,886.58 : 399,967.35 = 167,348.94 : x
  2. Step 2: Convert to fraction form
    289,886.58/399,967.35 = 167,348.94/x
  3. Step 3: Cross multiply
    289,886.58x = 399,967.35 × 167,348.94
  4. Step 4: Simplify right side
    289,886.58x = 66,934,112,057.11
  5. Step 5: Solve for x
    x = 66,934,112,057.11/289,886.58
  6. Step 6: Final answer
    x = 230,897.59

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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.