Home / 448,128.96-618,389.12-266,854.20

Finding the Fourth Proportional to 448,128.96, 618,389.12 and 266,854.20

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Solution

The fourth proportional to 448,128.96, 618,389.12 and 266,854.20 is: 368,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,128.96 : 618,389.12 = 266,854.20 : x
  2. Step 2: Convert to fraction form
    448,128.96/618,389.12 = 266,854.20/x
  3. Step 3: Cross multiply
    448,128.96x = 618,389.12 × 266,854.20
  4. Step 4: Simplify right side
    448,128.96x = 165,019,733,906.30
  5. Step 5: Solve for x
    x = 165,019,733,906.30/448,128.96
  6. Step 6: Final answer
    x = 368,241.62

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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.