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Finding the Fourth Proportional to 289,502.67, 434,250.82 and 118,686.27

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Solution

The fourth proportional to 289,502.67, 434,250.82 and 118,686.27 is: 178,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,502.67 : 434,250.82 = 118,686.27 : x
  2. Step 2: Convert to fraction form
    289,502.67/434,250.82 = 118,686.27/x
  3. Step 3: Cross multiply
    289,502.67x = 434,250.82 × 118,686.27
  4. Step 4: Simplify right side
    289,502.67x = 51,539,610,070.24
  5. Step 5: Solve for x
    x = 51,539,610,070.24/289,502.67
  6. Step 6: Final answer
    x = 178,028.10

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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.