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Finding the Fourth Proportional to 281,530.08, 421,886.88 and 155,196

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Solution

The fourth proportional to 281,530.08, 421,886.88 and 155,196 is: 232,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,530.08 : 421,886.88 = 155,196 : x
  2. Step 2: Convert to fraction form
    281,530.08/421,886.88 = 155,196/x
  3. Step 3: Cross multiply
    281,530.08x = 421,886.88 × 155,196
  4. Step 4: Simplify right side
    281,530.08x = 65,475,156,228.48
  5. Step 5: Solve for x
    x = 65,475,156,228.48/281,530.08
  6. Step 6: Final answer
    x = 232,568.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.