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Finding the Fourth Proportional to 356,751.66, 492,247.98 and 211,530.60

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Solution

The fourth proportional to 356,751.66, 492,247.98 and 211,530.60 is: 291,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,751.66 : 492,247.98 = 211,530.60 : x
  2. Step 2: Convert to fraction form
    356,751.66/492,247.98 = 211,530.60/x
  3. Step 3: Cross multiply
    356,751.66x = 492,247.98 × 211,530.60
  4. Step 4: Simplify right side
    356,751.66x = 104,125,510,558.19
  5. Step 5: Solve for x
    x = 104,125,510,558.19/356,751.66
  6. Step 6: Final answer
    x = 291,871.13

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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.