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Finding the Fourth Proportional to 478,893.50, 718,340.27 and 163,353.14

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Solution

The fourth proportional to 478,893.50, 718,340.27 and 163,353.14 is: 245,029.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,893.50 : 718,340.27 = 163,353.14 : x
  2. Step 2: Convert to fraction form
    478,893.50/718,340.27 = 163,353.14/x
  3. Step 3: Cross multiply
    478,893.50x = 718,340.27 × 163,353.14
  4. Step 4: Simplify right side
    478,893.50x = 117,343,136,978.26
  5. Step 5: Solve for x
    x = 117,343,136,978.26/478,893.50
  6. Step 6: Final answer
    x = 245,029.71

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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.