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Finding the Fourth Proportional to 290,159.52, 400,420.36 and 162,835.11

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Solution

The fourth proportional to 290,159.52, 400,420.36 and 162,835.11 is: 224,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,159.52 : 400,420.36 = 162,835.11 : x
  2. Step 2: Convert to fraction form
    290,159.52/400,420.36 = 162,835.11/x
  3. Step 3: Cross multiply
    290,159.52x = 400,420.36 × 162,835.11
  4. Step 4: Simplify right side
    290,159.52x = 65,202,493,366.84
  5. Step 5: Solve for x
    x = 65,202,493,366.84/290,159.52
  6. Step 6: Final answer
    x = 224,712.58

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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.