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Finding the Fourth Proportional to 230,925.84, 318,674.52 and 128,952.96

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Solution

The fourth proportional to 230,925.84, 318,674.52 and 128,952.96 is: 177,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,925.84 : 318,674.52 = 128,952.96 : x
  2. Step 2: Convert to fraction form
    230,925.84/318,674.52 = 128,952.96/x
  3. Step 3: Cross multiply
    230,925.84x = 318,674.52 × 128,952.96
  4. Step 4: Simplify right side
    230,925.84x = 41,094,022,630.58
  5. Step 5: Solve for x
    x = 41,094,022,630.58/230,925.84
  6. Step 6: Final answer
    x = 177,953.33

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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.