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Finding the Fourth Proportional to 290,237.52, 400,505.80 and 162,888.52

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Solution

The fourth proportional to 290,237.52, 400,505.80 and 162,888.52 is: 224,773.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,237.52 : 400,505.80 = 162,888.52 : x
  2. Step 2: Convert to fraction form
    290,237.52/400,505.80 = 162,888.52/x
  3. Step 3: Cross multiply
    290,237.52x = 400,505.80 × 162,888.52
  4. Step 4: Simplify right side
    290,237.52x = 65,237,797,013.42
  5. Step 5: Solve for x
    x = 65,237,797,013.42/290,237.52
  6. Step 6: Final answer
    x = 224,773.82

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1.5x scale

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.