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Finding the Fourth Proportional to 245,529.01, 338,826.72 and 138,099.01

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Solution

The fourth proportional to 245,529.01, 338,826.72 and 138,099.01 is: 190,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,529.01 : 338,826.72 = 138,099.01 : x
  2. Step 2: Convert to fraction form
    245,529.01/338,826.72 = 138,099.01/x
  3. Step 3: Cross multiply
    245,529.01x = 338,826.72 × 138,099.01
  4. Step 4: Simplify right side
    245,529.01x = 46,791,634,593.55
  5. Step 5: Solve for x
    x = 46,791,634,593.55/245,529.01
  6. Step 6: Final answer
    x = 190,574.77

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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.