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Finding the Fourth Proportional to 535,531.50, 803,264.58 and 219,980.34

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Solution

The fourth proportional to 535,531.50, 803,264.58 and 219,980.34 is: 329,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,531.50 : 803,264.58 = 219,980.34 : x
  2. Step 2: Convert to fraction form
    535,531.50/803,264.58 = 219,980.34/x
  3. Step 3: Cross multiply
    535,531.50x = 803,264.58 × 219,980.34
  4. Step 4: Simplify right side
    535,531.50x = 176,702,415,418.36
  5. Step 5: Solve for x
    x = 176,702,415,418.36/535,531.50
  6. Step 6: Final answer
    x = 329,957.09

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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.