Home / 642,100.08-963,159.53-305,175.11

Finding the Fourth Proportional to 642,100.08, 963,159.53 and 305,175.11

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Solution

The fourth proportional to 642,100.08, 963,159.53 and 305,175.11 is: 457,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,100.08 : 963,159.53 = 305,175.11 : x
  2. Step 2: Convert to fraction form
    642,100.08/963,159.53 = 305,175.11/x
  3. Step 3: Cross multiply
    642,100.08x = 963,159.53 × 305,175.11
  4. Step 4: Simplify right side
    642,100.08x = 293,932,315,515.30
  5. Step 5: Solve for x
    x = 293,932,315,515.30/642,100.08
  6. Step 6: Final answer
    x = 457,767.14

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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.