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Finding the Fourth Proportional to 235,228.56, 324,614.04 and 138,488.64

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Solution

The fourth proportional to 235,228.56, 324,614.04 and 138,488.64 is: 191,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,228.56 : 324,614.04 = 138,488.64 : x
  2. Step 2: Convert to fraction form
    235,228.56/324,614.04 = 138,488.64/x
  3. Step 3: Cross multiply
    235,228.56x = 324,614.04 × 138,488.64
  4. Step 4: Simplify right side
    235,228.56x = 44,955,356,924.51
  5. Step 5: Solve for x
    x = 44,955,356,924.51/235,228.56
  6. Step 6: Final answer
    x = 191,113.51

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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.