Home / 478,940.69-718,466.64-159,121.10

Finding the Fourth Proportional to 478,940.69, 718,466.64 and 159,121.10

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Solution

The fourth proportional to 478,940.69, 718,466.64 and 159,121.10 is: 238,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,940.69 : 718,466.64 = 159,121.10 : x
  2. Step 2: Convert to fraction form
    478,940.69/718,466.64 = 159,121.10/x
  3. Step 3: Cross multiply
    478,940.69x = 718,466.64 × 159,121.10
  4. Step 4: Simplify right side
    478,940.69x = 114,323,202,070.10
  5. Step 5: Solve for x
    x = 114,323,202,070.10/478,940.69
  6. Step 6: Final answer
    x = 238,700.12

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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.