Home / 352,421.28-486,365.31-199,459.53

Finding the Fourth Proportional to 352,421.28, 486,365.31 and 199,459.53

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Solution

The fourth proportional to 352,421.28, 486,365.31 and 199,459.53 is: 275,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,421.28 : 486,365.31 = 199,459.53 : x
  2. Step 2: Convert to fraction form
    352,421.28/486,365.31 = 199,459.53/x
  3. Step 3: Cross multiply
    352,421.28x = 486,365.31 × 199,459.53
  4. Step 4: Simplify right side
    352,421.28x = 97,010,196,140.90
  5. Step 5: Solve for x
    x = 97,010,196,140.90/352,421.28
  6. Step 6: Final answer
    x = 275,267.70

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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.