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Finding the Fourth Proportional to 248,516.48, 342,956.40 and 135,338.96

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Solution

The fourth proportional to 248,516.48, 342,956.40 and 135,338.96 is: 186,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,516.48 : 342,956.40 = 135,338.96 : x
  2. Step 2: Convert to fraction form
    248,516.48/342,956.40 = 135,338.96/x
  3. Step 3: Cross multiply
    248,516.48x = 342,956.40 × 135,338.96
  4. Step 4: Simplify right side
    248,516.48x = 46,415,362,501.34
  5. Step 5: Solve for x
    x = 46,415,362,501.34/248,516.48
  6. Step 6: Final answer
    x = 186,769.76

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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.