Home / 290,193.16-400,505.64-162,875.72

Finding the Fourth Proportional to 290,193.16, 400,505.64 and 162,875.72

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Solution

The fourth proportional to 290,193.16, 400,505.64 and 162,875.72 is: 224,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,193.16 : 400,505.64 = 162,875.72 : x
  2. Step 2: Convert to fraction form
    290,193.16/400,505.64 = 162,875.72/x
  3. Step 3: Cross multiply
    290,193.16x = 400,505.64 × 162,875.72
  4. Step 4: Simplify right side
    290,193.16x = 65,232,644,479.06
  5. Step 5: Solve for x
    x = 65,232,644,479.06/290,193.16
  6. Step 6: Final answer
    x = 224,790.43

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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.