Home / 248,278.32-342,631.80-135,108.72

Finding the Fourth Proportional to 248,278.32, 342,631.80 and 135,108.72

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Solution

The fourth proportional to 248,278.32, 342,631.80 and 135,108.72 is: 186,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,278.32 : 342,631.80 = 135,108.72 : x
  2. Step 2: Convert to fraction form
    248,278.32/342,631.80 = 135,108.72/x
  3. Step 3: Cross multiply
    248,278.32x = 342,631.80 × 135,108.72
  4. Step 4: Simplify right side
    248,278.32x = 46,292,543,929.30
  5. Step 5: Solve for x
    x = 46,292,543,929.30/248,278.32
  6. Step 6: Final answer
    x = 186,454.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.