Home / 458,982.45-688,473.54-143,439.36

Finding the Fourth Proportional to 458,982.45, 688,473.54 and 143,439.36

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Solution

The fourth proportional to 458,982.45, 688,473.54 and 143,439.36 is: 215,159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,982.45 : 688,473.54 = 143,439.36 : x
  2. Step 2: Convert to fraction form
    458,982.45/688,473.54 = 143,439.36/x
  3. Step 3: Cross multiply
    458,982.45x = 688,473.54 × 143,439.36
  4. Step 4: Simplify right side
    458,982.45x = 98,754,203,954.53
  5. Step 5: Solve for x
    x = 98,754,203,954.53/458,982.45
  6. Step 6: Final answer
    x = 215,159.00

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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.