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Finding the Fourth Proportional to 557,284.70, 835,663.54 and 215,888.04

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Solution

The fourth proportional to 557,284.70, 835,663.54 and 215,888.04 is: 323,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,284.70 : 835,663.54 = 215,888.04 : x
  2. Step 2: Convert to fraction form
    557,284.70/835,663.54 = 215,888.04/x
  3. Step 3: Cross multiply
    557,284.70x = 835,663.54 × 215,888.04
  4. Step 4: Simplify right side
    557,284.70x = 180,409,763,750.06
  5. Step 5: Solve for x
    x = 180,409,763,750.06/557,284.70
  6. Step 6: Final answer
    x = 323,729.98

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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.