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Finding the Fourth Proportional to 248,497.98, 342,927.75 and 135,318.30

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Solution

The fourth proportional to 248,497.98, 342,927.75 and 135,318.30 is: 186,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,497.98 : 342,927.75 = 135,318.30 : x
  2. Step 2: Convert to fraction form
    248,497.98/342,927.75 = 135,318.30/x
  3. Step 3: Cross multiply
    248,497.98x = 342,927.75 × 135,318.30
  4. Step 4: Simplify right side
    248,497.98x = 46,404,400,152.83
  5. Step 5: Solve for x
    x = 46,404,400,152.83/248,497.98
  6. Step 6: Final answer
    x = 186,739.55

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1.5x scale

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.