Home / 228,436.74-315,272.07-137,841.60

Finding the Fourth Proportional to 228,436.74, 315,272.07 and 137,841.60

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Solution

The fourth proportional to 228,436.74, 315,272.07 and 137,841.60 is: 190,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,436.74 : 315,272.07 = 137,841.60 : x
  2. Step 2: Convert to fraction form
    228,436.74/315,272.07 = 137,841.60/x
  3. Step 3: Cross multiply
    228,436.74x = 315,272.07 × 137,841.60
  4. Step 4: Simplify right side
    228,436.74x = 43,457,606,564.11
  5. Step 5: Solve for x
    x = 43,457,606,564.11/228,436.74
  6. Step 6: Final answer
    x = 190,239.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.