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Finding the Fourth Proportional to 290,152.77, 400,449.92 and 162,835.35

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Solution

The fourth proportional to 290,152.77, 400,449.92 and 162,835.35 is: 224,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,152.77 : 400,449.92 = 162,835.35 : x
  2. Step 2: Convert to fraction form
    290,152.77/400,449.92 = 162,835.35/x
  3. Step 3: Cross multiply
    290,152.77x = 400,449.92 × 162,835.35
  4. Step 4: Simplify right side
    290,152.77x = 65,207,402,880.67
  5. Step 5: Solve for x
    x = 65,207,402,880.67/290,152.77
  6. Step 6: Final answer
    x = 224,734.72

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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.