Home / 315,929.24-435,985.28-179,961.24

Finding the Fourth Proportional to 315,929.24, 435,985.28 and 179,961.24

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Solution

The fourth proportional to 315,929.24, 435,985.28 and 179,961.24 is: 248,348.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,929.24 : 435,985.28 = 179,961.24 : x
  2. Step 2: Convert to fraction form
    315,929.24/435,985.28 = 179,961.24/x
  3. Step 3: Cross multiply
    315,929.24x = 435,985.28 × 179,961.24
  4. Step 4: Simplify right side
    315,929.24x = 78,460,451,610.55
  5. Step 5: Solve for x
    x = 78,460,451,610.55/315,929.24
  6. Step 6: Final answer
    x = 248,348.18

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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.