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Finding the Fourth Proportional to 248,607, 343,077.72 and 135,429.72

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Solution

The fourth proportional to 248,607, 343,077.72 and 135,429.72 is: 186,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,607 : 343,077.72 = 135,429.72 : x
  2. Step 2: Convert to fraction form
    248,607/343,077.72 = 135,429.72/x
  3. Step 3: Cross multiply
    248,607x = 343,077.72 × 135,429.72
  4. Step 4: Simplify right side
    248,607x = 46,462,919,557.84
  5. Step 5: Solve for x
    x = 46,462,919,557.84/248,607
  6. Step 6: Final answer
    x = 186,893.05

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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.