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Finding the Fourth Proportional to 229,196.94, 316,297.23 and 128,602.38

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Solution

The fourth proportional to 229,196.94, 316,297.23 and 128,602.38 is: 177,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,196.94 : 316,297.23 = 128,602.38 : x
  2. Step 2: Convert to fraction form
    229,196.94/316,297.23 = 128,602.38/x
  3. Step 3: Cross multiply
    229,196.94x = 316,297.23 × 128,602.38
  4. Step 4: Simplify right side
    229,196.94x = 40,676,576,565.41
  5. Step 5: Solve for x
    x = 40,676,576,565.41/229,196.94
  6. Step 6: Final answer
    x = 177,474.34

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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.