Home / 205,099.40-307,649.10-116,318.60

Finding the Fourth Proportional to 205,099.40, 307,649.10 and 116,318.60

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Solution

The fourth proportional to 205,099.40, 307,649.10 and 116,318.60 is: 174,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,099.40 : 307,649.10 = 116,318.60 : x
  2. Step 2: Convert to fraction form
    205,099.40/307,649.10 = 116,318.60/x
  3. Step 3: Cross multiply
    205,099.40x = 307,649.10 × 116,318.60
  4. Step 4: Simplify right side
    205,099.40x = 35,785,312,603.26
  5. Step 5: Solve for x
    x = 35,785,312,603.26/205,099.40
  6. Step 6: Final answer
    x = 174,477.90

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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.