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Finding the Fourth Proportional to 366,279.14, 505,373.90 and 211,277.81

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Solution

The fourth proportional to 366,279.14, 505,373.90 and 211,277.81 is: 291,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,279.14 : 505,373.90 = 211,277.81 : x
  2. Step 2: Convert to fraction form
    366,279.14/505,373.90 = 211,277.81/x
  3. Step 3: Cross multiply
    366,279.14x = 505,373.90 × 211,277.81
  4. Step 4: Simplify right side
    366,279.14x = 106,774,291,030.21
  5. Step 5: Solve for x
    x = 106,774,291,030.21/366,279.14
  6. Step 6: Final answer
    x = 291,510.71

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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.