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Finding the Fourth Proportional to 243,635.78, 365,515.95 and 101,433.79

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Solution

The fourth proportional to 243,635.78, 365,515.95 and 101,433.79 is: 152,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,635.78 : 365,515.95 = 101,433.79 : x
  2. Step 2: Convert to fraction form
    243,635.78/365,515.95 = 101,433.79/x
  3. Step 3: Cross multiply
    243,635.78x = 365,515.95 × 101,433.79
  4. Step 4: Simplify right side
    243,635.78x = 37,075,668,113.95
  5. Step 5: Solve for x
    x = 37,075,668,113.95/243,635.78
  6. Step 6: Final answer
    x = 152,176.62

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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.