Home / 308,742.28-463,099.51-128,753.59

Finding the Fourth Proportional to 308,742.28, 463,099.51 and 128,753.59

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Solution

The fourth proportional to 308,742.28, 463,099.51 and 128,753.59 is: 193,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,742.28 : 463,099.51 = 128,753.59 : x
  2. Step 2: Convert to fraction form
    308,742.28/463,099.51 = 128,753.59/x
  3. Step 3: Cross multiply
    308,742.28x = 463,099.51 × 128,753.59
  4. Step 4: Simplify right side
    308,742.28x = 59,625,724,439.74
  5. Step 5: Solve for x
    x = 59,625,724,439.74/308,742.28
  6. Step 6: Final answer
    x = 193,124.58

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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.