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Finding the Fourth Proportional to 275,030.95, 379,535.88 and 152,522.62

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Solution

The fourth proportional to 275,030.95, 379,535.88 and 152,522.62 is: 210,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,030.95 : 379,535.88 = 152,522.62 : x
  2. Step 2: Convert to fraction form
    275,030.95/379,535.88 = 152,522.62/x
  3. Step 3: Cross multiply
    275,030.95x = 379,535.88 × 152,522.62
  4. Step 4: Simplify right side
    275,030.95x = 57,887,806,801.61
  5. Step 5: Solve for x
    x = 57,887,806,801.61/275,030.95
  6. Step 6: Final answer
    x = 210,477.43

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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.