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Finding the Fourth Proportional to 352,646.56, 486,696.72 and 218,530.72

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Solution

The fourth proportional to 352,646.56, 486,696.72 and 218,530.72 is: 301,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,646.56 : 486,696.72 = 218,530.72 : x
  2. Step 2: Convert to fraction form
    352,646.56/486,696.72 = 218,530.72/x
  3. Step 3: Cross multiply
    352,646.56x = 486,696.72 × 218,530.72
  4. Step 4: Simplify right side
    352,646.56x = 106,358,184,643.24
  5. Step 5: Solve for x
    x = 106,358,184,643.24/352,646.56
  6. Step 6: Final answer
    x = 301,599.95

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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.