Home / 309,424.17-464,136.66-84,786.60

Finding the Fourth Proportional to 309,424.17, 464,136.66 and 84,786.60

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Solution

The fourth proportional to 309,424.17, 464,136.66 and 84,786.60 is: 127,180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,424.17 : 464,136.66 = 84,786.60 : x
  2. Step 2: Convert to fraction form
    309,424.17/464,136.66 = 84,786.60/x
  3. Step 3: Cross multiply
    309,424.17x = 464,136.66 × 84,786.60
  4. Step 4: Simplify right side
    309,424.17x = 39,352,569,336.76
  5. Step 5: Solve for x
    x = 39,352,569,336.76/309,424.17
  6. Step 6: Final answer
    x = 127,180.01

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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.