Home / 406,173.29-609,318.26-139,862.30

Finding the Fourth Proportional to 406,173.29, 609,318.26 and 139,862.30

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Solution

The fourth proportional to 406,173.29, 609,318.26 and 139,862.30 is: 209,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,173.29 : 609,318.26 = 139,862.30 : x
  2. Step 2: Convert to fraction form
    406,173.29/609,318.26 = 139,862.30/x
  3. Step 3: Cross multiply
    406,173.29x = 609,318.26 × 139,862.30
  4. Step 4: Simplify right side
    406,173.29x = 85,220,655,148.55
  5. Step 5: Solve for x
    x = 85,220,655,148.55/406,173.29
  6. Step 6: Final answer
    x = 209,813.54

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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.