Home / 210,627.20-290,665.53-115,134.27

Finding the Fourth Proportional to 210,627.20, 290,665.53 and 115,134.27

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Solution

The fourth proportional to 210,627.20, 290,665.53 and 115,134.27 is: 158,885.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.20 : 290,665.53 = 115,134.27 : x
  2. Step 2: Convert to fraction form
    210,627.20/290,665.53 = 115,134.27/x
  3. Step 3: Cross multiply
    210,627.20x = 290,665.53 × 115,134.27
  4. Step 4: Simplify right side
    210,627.20x = 33,465,563,610.71
  5. Step 5: Solve for x
    x = 33,465,563,610.71/210,627.20
  6. Step 6: Final answer
    x = 158,885.29

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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.