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Finding the Fourth Proportional to 290,248.80, 400,492.80 and 162,929.76

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Solution

The fourth proportional to 290,248.80, 400,492.80 and 162,929.76 is: 224,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,248.80 : 400,492.80 = 162,929.76 : x
  2. Step 2: Convert to fraction form
    290,248.80/400,492.80 = 162,929.76/x
  3. Step 3: Cross multiply
    290,248.80x = 400,492.80 × 162,929.76
  4. Step 4: Simplify right side
    290,248.80x = 65,252,195,785.73
  5. Step 5: Solve for x
    x = 65,252,195,785.73/290,248.80
  6. Step 6: Final answer
    x = 224,814.70

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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.