Home / 211,146.98-291,411.83-129,460.79

Finding the Fourth Proportional to 211,146.98, 291,411.83 and 129,460.79

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Solution

The fourth proportional to 211,146.98, 291,411.83 and 129,460.79 is: 178,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.98 : 291,411.83 = 129,460.79 : x
  2. Step 2: Convert to fraction form
    211,146.98/291,411.83 = 129,460.79/x
  3. Step 3: Cross multiply
    211,146.98x = 291,411.83 × 129,460.79
  4. Step 4: Simplify right side
    211,146.98x = 37,726,405,727.15
  5. Step 5: Solve for x
    x = 37,726,405,727.15/211,146.98
  6. Step 6: Final answer
    x = 178,673.67

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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.