Home / 291,054.47-436,581.81-130,943.42

Finding the Fourth Proportional to 291,054.47, 436,581.81 and 130,943.42

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Solution

The fourth proportional to 291,054.47, 436,581.81 and 130,943.42 is: 196,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,054.47 : 436,581.81 = 130,943.42 : x
  2. Step 2: Convert to fraction form
    291,054.47/436,581.81 = 130,943.42/x
  3. Step 3: Cross multiply
    291,054.47x = 436,581.81 × 130,943.42
  4. Step 4: Simplify right side
    291,054.47x = 57,167,515,311.19
  5. Step 5: Solve for x
    x = 57,167,515,311.19/291,054.47
  6. Step 6: Final answer
    x = 196,415.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.