Home / 293,278.38-438,941.15-221,807.22

Finding the Fourth Proportional to 293,278.38, 438,941.15 and 221,807.22

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Solution

The fourth proportional to 293,278.38, 438,941.15 and 221,807.22 is: 331,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,278.38 : 438,941.15 = 221,807.22 : x
  2. Step 2: Convert to fraction form
    293,278.38/438,941.15 = 221,807.22/x
  3. Step 3: Cross multiply
    293,278.38x = 438,941.15 × 221,807.22
  4. Step 4: Simplify right side
    293,278.38x = 97,360,316,225.10
  5. Step 5: Solve for x
    x = 97,360,316,225.10/293,278.38
  6. Step 6: Final answer
    x = 331,972.36

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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.