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Finding the Fourth Proportional to 218,443.66, 301,296.97 and 145,809.93

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Solution

The fourth proportional to 218,443.66, 301,296.97 and 145,809.93 is: 201,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,443.66 : 301,296.97 = 145,809.93 : x
  2. Step 2: Convert to fraction form
    218,443.66/301,296.97 = 145,809.93/x
  3. Step 3: Cross multiply
    218,443.66x = 301,296.97 × 145,809.93
  4. Step 4: Simplify right side
    218,443.66x = 43,932,090,943.14
  5. Step 5: Solve for x
    x = 43,932,090,943.14/218,443.66
  6. Step 6: Final answer
    x = 201,114.05

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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.