Home / 281,341.02-421,701.93-138,975.51

Finding the Fourth Proportional to 281,341.02, 421,701.93 and 138,975.51

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Solution

The fourth proportional to 281,341.02, 421,701.93 and 138,975.51 is: 208,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,341.02 : 421,701.93 = 138,975.51 : x
  2. Step 2: Convert to fraction form
    281,341.02/421,701.93 = 138,975.51/x
  3. Step 3: Cross multiply
    281,341.02x = 421,701.93 × 138,975.51
  4. Step 4: Simplify right side
    281,341.02x = 58,606,240,789.73
  5. Step 5: Solve for x
    x = 58,606,240,789.73/281,341.02
  6. Step 6: Final answer
    x = 208,310.33

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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.