Home / 306,745.14-423,159.90-197,820.74

Finding the Fourth Proportional to 306,745.14, 423,159.90 and 197,820.74

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Solution

The fourth proportional to 306,745.14, 423,159.90 and 197,820.74 is: 272,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,745.14 : 423,159.90 = 197,820.74 : x
  2. Step 2: Convert to fraction form
    306,745.14/423,159.90 = 197,820.74/x
  3. Step 3: Cross multiply
    306,745.14x = 423,159.90 × 197,820.74
  4. Step 4: Simplify right side
    306,745.14x = 83,709,804,556.33
  5. Step 5: Solve for x
    x = 83,709,804,556.33/306,745.14
  6. Step 6: Final answer
    x = 272,896.92

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1.5x scale

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.