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Finding the Fourth Proportional to 371,113.90, 556,233.45 and 277,510.30

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Solution

The fourth proportional to 371,113.90, 556,233.45 and 277,510.30 is: 415,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,113.90 : 556,233.45 = 277,510.30 : x
  2. Step 2: Convert to fraction form
    371,113.90/556,233.45 = 277,510.30/x
  3. Step 3: Cross multiply
    371,113.90x = 556,233.45 × 277,510.30
  4. Step 4: Simplify right side
    371,113.90x = 154,360,511,579.54
  5. Step 5: Solve for x
    x = 154,360,511,579.54/371,113.90
  6. Step 6: Final answer
    x = 415,938.37

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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.