Home / 205,731.51-308,595.03-156,116.31

Finding the Fourth Proportional to 205,731.51, 308,595.03 and 156,116.31

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Solution

The fourth proportional to 205,731.51, 308,595.03 and 156,116.31 is: 234,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,731.51 : 308,595.03 = 156,116.31 : x
  2. Step 2: Convert to fraction form
    205,731.51/308,595.03 = 156,116.31/x
  3. Step 3: Cross multiply
    205,731.51x = 308,595.03 × 156,116.31
  4. Step 4: Simplify right side
    205,731.51x = 48,176,717,367.94
  5. Step 5: Solve for x
    x = 48,176,717,367.94/205,731.51
  6. Step 6: Final answer
    x = 234,172.77

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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.