Home / 639,929.94-959,952.30-166,619.40

Finding the Fourth Proportional to 639,929.94, 959,952.30 and 166,619.40

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Solution

The fourth proportional to 639,929.94, 959,952.30 and 166,619.40 is: 249,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,929.94 : 959,952.30 = 166,619.40 : x
  2. Step 2: Convert to fraction form
    639,929.94/959,952.30 = 166,619.40/x
  3. Step 3: Cross multiply
    639,929.94x = 959,952.30 × 166,619.40
  4. Step 4: Simplify right side
    639,929.94x = 159,946,676,254.62
  5. Step 5: Solve for x
    x = 159,946,676,254.62/639,929.94
  6. Step 6: Final answer
    x = 249,944.04

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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.