Home / 328,026.20-492,039.30-117,636.80

Finding the Fourth Proportional to 328,026.20, 492,039.30 and 117,636.80

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Solution

The fourth proportional to 328,026.20, 492,039.30 and 117,636.80 is: 176,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,026.20 : 492,039.30 = 117,636.80 : x
  2. Step 2: Convert to fraction form
    328,026.20/492,039.30 = 117,636.80/x
  3. Step 3: Cross multiply
    328,026.20x = 492,039.30 × 117,636.80
  4. Step 4: Simplify right side
    328,026.20x = 57,881,928,726.24
  5. Step 5: Solve for x
    x = 57,881,928,726.24/328,026.20
  6. Step 6: Final answer
    x = 176,455.20

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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.