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Finding the Fourth Proportional to 371,436.80, 556,946 and 118,657.92

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Solution

The fourth proportional to 371,436.80, 556,946 and 118,657.92 is: 177,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,436.80 : 556,946 = 118,657.92 : x
  2. Step 2: Convert to fraction form
    371,436.80/556,946 = 118,657.92/x
  3. Step 3: Cross multiply
    371,436.80x = 556,946 × 118,657.92
  4. Step 4: Simplify right side
    371,436.80x = 66,086,053,912.32
  5. Step 5: Solve for x
    x = 66,086,053,912.32/371,436.80
  6. Step 6: Final answer
    x = 177,920.05

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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.