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Finding the Fourth Proportional to 285,554.08, 428,338.08 and 96,017.20

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Solution

The fourth proportional to 285,554.08, 428,338.08 and 96,017.20 is: 144,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,554.08 : 428,338.08 = 96,017.20 : x
  2. Step 2: Convert to fraction form
    285,554.08/428,338.08 = 96,017.20/x
  3. Step 3: Cross multiply
    285,554.08x = 428,338.08 × 96,017.20
  4. Step 4: Simplify right side
    285,554.08x = 41,127,823,094.98
  5. Step 5: Solve for x
    x = 41,127,823,094.98/285,554.08
  6. Step 6: Final answer
    x = 144,028.14

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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.