Home / 248,327.28-342,685.08-135,147.60

Finding the Fourth Proportional to 248,327.28, 342,685.08 and 135,147.60

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Solution

The fourth proportional to 248,327.28, 342,685.08 and 135,147.60 is: 186,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,327.28 : 342,685.08 = 135,147.60 : x
  2. Step 2: Convert to fraction form
    248,327.28/342,685.08 = 135,147.60/x
  3. Step 3: Cross multiply
    248,327.28x = 342,685.08 × 135,147.60
  4. Step 4: Simplify right side
    248,327.28x = 46,313,066,117.81
  5. Step 5: Solve for x
    x = 46,313,066,117.81/248,327.28
  6. Step 6: Final answer
    x = 186,500.11

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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.