Home / 211,081.23-291,343.37-130,460.21

Finding the Fourth Proportional to 211,081.23, 291,343.37 and 130,460.21

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Solution

The fourth proportional to 211,081.23, 291,343.37 and 130,460.21 is: 180,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,081.23 : 291,343.37 = 130,460.21 : x
  2. Step 2: Convert to fraction form
    211,081.23/291,343.37 = 130,460.21/x
  3. Step 3: Cross multiply
    211,081.23x = 291,343.37 × 130,460.21
  4. Step 4: Simplify right side
    211,081.23x = 38,008,715,123.29
  5. Step 5: Solve for x
    x = 38,008,715,123.29/211,081.23
  6. Step 6: Final answer
    x = 180,066.77

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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.