Home / 429,769.32-644,933.70-163,532.04

Finding the Fourth Proportional to 429,769.32, 644,933.70 and 163,532.04

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Solution

The fourth proportional to 429,769.32, 644,933.70 and 163,532.04 is: 245,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,769.32 : 644,933.70 = 163,532.04 : x
  2. Step 2: Convert to fraction form
    429,769.32/644,933.70 = 163,532.04/x
  3. Step 3: Cross multiply
    429,769.32x = 644,933.70 × 163,532.04
  4. Step 4: Simplify right side
    429,769.32x = 105,467,323,625.75
  5. Step 5: Solve for x
    x = 105,467,323,625.75/429,769.32
  6. Step 6: Final answer
    x = 245,404.50

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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.