Home / 210,781.46-290,885.34-115,288.16

Finding the Fourth Proportional to 210,781.46, 290,885.34 and 115,288.16

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Solution

The fourth proportional to 210,781.46, 290,885.34 and 115,288.16 is: 159,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,781.46 : 290,885.34 = 115,288.16 : x
  2. Step 2: Convert to fraction form
    210,781.46/290,885.34 = 115,288.16/x
  3. Step 3: Cross multiply
    210,781.46x = 290,885.34 × 115,288.16
  4. Step 4: Simplify right side
    210,781.46x = 33,535,634,597.48
  5. Step 5: Solve for x
    x = 33,535,634,597.48/210,781.46
  6. Step 6: Final answer
    x = 159,101.44

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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.