Home / 305,621.51-458,371.61-153,778.10

Finding the Fourth Proportional to 305,621.51, 458,371.61 and 153,778.10

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Solution

The fourth proportional to 305,621.51, 458,371.61 and 153,778.10 is: 230,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,621.51 : 458,371.61 = 153,778.10 : x
  2. Step 2: Convert to fraction form
    305,621.51/458,371.61 = 153,778.10/x
  3. Step 3: Cross multiply
    305,621.51x = 458,371.61 × 153,778.10
  4. Step 4: Simplify right side
    305,621.51x = 70,487,512,795.66
  5. Step 5: Solve for x
    x = 70,487,512,795.66/305,621.51
  6. Step 6: Final answer
    x = 230,636.63

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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.