Home / 465,448.16-698,158.28-128,509.38

Finding the Fourth Proportional to 465,448.16, 698,158.28 and 128,509.38

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Solution

The fourth proportional to 465,448.16, 698,158.28 and 128,509.38 is: 192,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,448.16 : 698,158.28 = 128,509.38 : x
  2. Step 2: Convert to fraction form
    465,448.16/698,158.28 = 128,509.38/x
  3. Step 3: Cross multiply
    465,448.16x = 698,158.28 × 128,509.38
  4. Step 4: Simplify right side
    465,448.16x = 89,719,887,704.67
  5. Step 5: Solve for x
    x = 89,719,887,704.67/465,448.16
  6. Step 6: Final answer
    x = 192,760.22

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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.