Home / 260,362.26-390,403.07-140,483.48

Finding the Fourth Proportional to 260,362.26, 390,403.07 and 140,483.48

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Solution

The fourth proportional to 260,362.26, 390,403.07 and 140,483.48 is: 210,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,362.26 : 390,403.07 = 140,483.48 : x
  2. Step 2: Convert to fraction form
    260,362.26/390,403.07 = 140,483.48/x
  3. Step 3: Cross multiply
    260,362.26x = 390,403.07 × 140,483.48
  4. Step 4: Simplify right side
    260,362.26x = 54,845,179,221.85
  5. Step 5: Solve for x
    x = 54,845,179,221.85/260,362.26
  6. Step 6: Final answer
    x = 210,649.50

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1.5x scale

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.