Home / 315,117.31-472,454.53-115,411.75

Finding the Fourth Proportional to 315,117.31, 472,454.53 and 115,411.75

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Solution

The fourth proportional to 315,117.31, 472,454.53 and 115,411.75 is: 173,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,117.31 : 472,454.53 = 115,411.75 : x
  2. Step 2: Convert to fraction form
    315,117.31/472,454.53 = 115,411.75/x
  3. Step 3: Cross multiply
    315,117.31x = 472,454.53 × 115,411.75
  4. Step 4: Simplify right side
    315,117.31x = 54,526,804,108.94
  5. Step 5: Solve for x
    x = 54,526,804,108.94/315,117.31
  6. Step 6: Final answer
    x = 173,036.52

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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.