Home / 211,318.07-291,648.83-130,771.54

Finding the Fourth Proportional to 211,318.07, 291,648.83 and 130,771.54

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Solution

The fourth proportional to 211,318.07, 291,648.83 and 130,771.54 is: 180,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,318.07 : 291,648.83 = 130,771.54 : x
  2. Step 2: Convert to fraction form
    211,318.07/291,648.83 = 130,771.54/x
  3. Step 3: Cross multiply
    211,318.07x = 291,648.83 × 130,771.54
  4. Step 4: Simplify right side
    211,318.07x = 38,139,366,349.00
  5. Step 5: Solve for x
    x = 38,139,366,349.00/211,318.07
  6. Step 6: Final answer
    x = 180,483.23

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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.