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Finding the Fourth Proportional to 248,133.88, 342,428.34 and 134,956.96

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Solution

The fourth proportional to 248,133.88, 342,428.34 and 134,956.96 is: 186,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,133.88 : 342,428.34 = 134,956.96 : x
  2. Step 2: Convert to fraction form
    248,133.88/342,428.34 = 134,956.96/x
  3. Step 3: Cross multiply
    248,133.88x = 342,428.34 × 134,956.96
  4. Step 4: Simplify right side
    248,133.88x = 46,213,087,784.25
  5. Step 5: Solve for x
    x = 46,213,087,784.25/248,133.88
  6. Step 6: Final answer
    x = 186,242.55

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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.