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Finding the Fourth Proportional to 307,637.40, 461,456.10 and 223,656.60

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Solution

The fourth proportional to 307,637.40, 461,456.10 and 223,656.60 is: 335,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,637.40 : 461,456.10 = 223,656.60 : x
  2. Step 2: Convert to fraction form
    307,637.40/461,456.10 = 223,656.60/x
  3. Step 3: Cross multiply
    307,637.40x = 461,456.10 × 223,656.60
  4. Step 4: Simplify right side
    307,637.40x = 103,207,702,375.26
  5. Step 5: Solve for x
    x = 103,207,702,375.26/307,637.40
  6. Step 6: Final answer
    x = 335,484.90

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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.