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Finding the Fourth Proportional to 429,350.80, 644,346.15 and 163,630.30

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Solution

The fourth proportional to 429,350.80, 644,346.15 and 163,630.30 is: 245,567.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,350.80 : 644,346.15 = 163,630.30 : x
  2. Step 2: Convert to fraction form
    429,350.80/644,346.15 = 163,630.30/x
  3. Step 3: Cross multiply
    429,350.80x = 644,346.15 × 163,630.30
  4. Step 4: Simplify right side
    429,350.80x = 105,434,553,828.35
  5. Step 5: Solve for x
    x = 105,434,553,828.35/429,350.80
  6. Step 6: Final answer
    x = 245,567.39

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1.5x scale

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.