Home / 211,178.84-291,316.32-130,580.60

Finding the Fourth Proportional to 211,178.84, 291,316.32 and 130,580.60

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Solution

The fourth proportional to 211,178.84, 291,316.32 and 130,580.60 is: 180,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,178.84 : 291,316.32 = 130,580.60 : x
  2. Step 2: Convert to fraction form
    211,178.84/291,316.32 = 130,580.60/x
  3. Step 3: Cross multiply
    211,178.84x = 291,316.32 × 130,580.60
  4. Step 4: Simplify right side
    211,178.84x = 38,040,259,855.39
  5. Step 5: Solve for x
    x = 38,040,259,855.39/211,178.84
  6. Step 6: Final answer
    x = 180,132.91

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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.