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Finding the Fourth Proportional to 290,148.21, 400,404.74 and 162,823.79

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Solution

The fourth proportional to 290,148.21, 400,404.74 and 162,823.79 is: 224,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,148.21 : 400,404.74 = 162,823.79 : x
  2. Step 2: Convert to fraction form
    290,148.21/400,404.74 = 162,823.79/x
  3. Step 3: Cross multiply
    290,148.21x = 400,404.74 × 162,823.79
  4. Step 4: Simplify right side
    290,148.21x = 65,195,417,487.66
  5. Step 5: Solve for x
    x = 65,195,417,487.66/290,148.21
  6. Step 6: Final answer
    x = 224,696.95

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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.