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Finding the Fourth Proportional to 351,288.83, 484,795.71 and 215,330.33

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Solution

The fourth proportional to 351,288.83, 484,795.71 and 215,330.33 is: 297,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,288.83 : 484,795.71 = 215,330.33 : x
  2. Step 2: Convert to fraction form
    351,288.83/484,795.71 = 215,330.33/x
  3. Step 3: Cross multiply
    351,288.83x = 484,795.71 × 215,330.33
  4. Step 4: Simplify right side
    351,288.83x = 104,391,217,792.91
  5. Step 5: Solve for x
    x = 104,391,217,792.91/351,288.83
  6. Step 6: Final answer
    x = 297,166.35

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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.