Home / 315,119.10-472,284.45-157,391.58

Finding the Fourth Proportional to 315,119.10, 472,284.45 and 157,391.58

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Solution

The fourth proportional to 315,119.10, 472,284.45 and 157,391.58 is: 235,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,119.10 : 472,284.45 = 157,391.58 : x
  2. Step 2: Convert to fraction form
    315,119.10/472,284.45 = 157,391.58/x
  3. Step 3: Cross multiply
    315,119.10x = 472,284.45 × 157,391.58
  4. Step 4: Simplify right side
    315,119.10x = 74,333,595,794.93
  5. Step 5: Solve for x
    x = 74,333,595,794.93/315,119.10
  6. Step 6: Final answer
    x = 235,890.48

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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.