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Finding the Fourth Proportional to 429,875.52, 644,813.28 and 163,573.44

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Solution

The fourth proportional to 429,875.52, 644,813.28 and 163,573.44 is: 245,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,875.52 : 644,813.28 = 163,573.44 : x
  2. Step 2: Convert to fraction form
    429,875.52/644,813.28 = 163,573.44/x
  3. Step 3: Cross multiply
    429,875.52x = 644,813.28 × 163,573.44
  4. Step 4: Simplify right side
    429,875.52x = 105,474,326,367.28
  5. Step 5: Solve for x
    x = 105,474,326,367.28/429,875.52
  6. Step 6: Final answer
    x = 245,360.16

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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.