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Finding the Fourth Proportional to 401,589.93, 554,188.95 and 229,505.97

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Solution

The fourth proportional to 401,589.93, 554,188.95 and 229,505.97 is: 316,715.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,589.93 : 554,188.95 = 229,505.97 : x
  2. Step 2: Convert to fraction form
    401,589.93/554,188.95 = 229,505.97/x
  3. Step 3: Cross multiply
    401,589.93x = 554,188.95 × 229,505.97
  4. Step 4: Simplify right side
    401,589.93x = 127,189,672,533.03
  5. Step 5: Solve for x
    x = 127,189,672,533.03/401,589.93
  6. Step 6: Final answer
    x = 316,715.29

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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.