Home / 286,865.01-395,881.29-157,806.90

Finding the Fourth Proportional to 286,865.01, 395,881.29 and 157,806.90

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Solution

The fourth proportional to 286,865.01, 395,881.29 and 157,806.90 is: 217,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,865.01 : 395,881.29 = 157,806.90 : x
  2. Step 2: Convert to fraction form
    286,865.01/395,881.29 = 157,806.90/x
  3. Step 3: Cross multiply
    286,865.01x = 395,881.29 × 157,806.90
  4. Step 4: Simplify right side
    286,865.01x = 62,472,799,142.90
  5. Step 5: Solve for x
    x = 62,472,799,142.90/286,865.01
  6. Step 6: Final answer
    x = 217,777.69

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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.