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Finding the Fourth Proportional to 290,113.84, 400,356.03 and 162,789.13

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Solution

The fourth proportional to 290,113.84, 400,356.03 and 162,789.13 is: 224,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,113.84 : 400,356.03 = 162,789.13 : x
  2. Step 2: Convert to fraction form
    290,113.84/400,356.03 = 162,789.13/x
  3. Step 3: Cross multiply
    290,113.84x = 400,356.03 × 162,789.13
  4. Step 4: Simplify right side
    290,113.84x = 65,173,609,813.95
  5. Step 5: Solve for x
    x = 65,173,609,813.95/290,113.84
  6. Step 6: Final answer
    x = 224,648.40

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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.