Home / 312,929.22-469,430.49-99,622.41

Finding the Fourth Proportional to 312,929.22, 469,430.49 and 99,622.41

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Solution

The fourth proportional to 312,929.22, 469,430.49 and 99,622.41 is: 149,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,929.22 : 469,430.49 = 99,622.41 : x
  2. Step 2: Convert to fraction form
    312,929.22/469,430.49 = 99,622.41/x
  3. Step 3: Cross multiply
    312,929.22x = 469,430.49 × 99,622.41
  4. Step 4: Simplify right side
    312,929.22x = 46,765,796,741.28
  5. Step 5: Solve for x
    x = 46,765,796,741.28/312,929.22
  6. Step 6: Final answer
    x = 149,445.29

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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.