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Finding the Fourth Proportional to 248,459.52, 342,869.76 and 135,280.32

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Solution

The fourth proportional to 248,459.52, 342,869.76 and 135,280.32 is: 186,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,459.52 : 342,869.76 = 135,280.32 : x
  2. Step 2: Convert to fraction form
    248,459.52/342,869.76 = 135,280.32/x
  3. Step 3: Cross multiply
    248,459.52x = 342,869.76 × 135,280.32
  4. Step 4: Simplify right side
    248,459.52x = 46,383,530,851.12
  5. Step 5: Solve for x
    x = 46,383,530,851.12/248,459.52
  6. Step 6: Final answer
    x = 186,684.46

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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.