Home / 305,756.58-421,929.96-169,799.24

Finding the Fourth Proportional to 305,756.58, 421,929.96 and 169,799.24

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Solution

The fourth proportional to 305,756.58, 421,929.96 and 169,799.24 is: 234,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,756.58 : 421,929.96 = 169,799.24 : x
  2. Step 2: Convert to fraction form
    305,756.58/421,929.96 = 169,799.24/x
  3. Step 3: Cross multiply
    305,756.58x = 421,929.96 × 169,799.24
  4. Step 4: Simplify right side
    305,756.58x = 71,643,386,541.23
  5. Step 5: Solve for x
    x = 71,643,386,541.23/305,756.58
  6. Step 6: Final answer
    x = 234,315.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.