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Finding the Fourth Proportional to 291,080.93, 401,681.23 and 162,015.12

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Solution

The fourth proportional to 291,080.93, 401,681.23 and 162,015.12 is: 223,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,080.93 : 401,681.23 = 162,015.12 : x
  2. Step 2: Convert to fraction form
    291,080.93/401,681.23 = 162,015.12/x
  3. Step 3: Cross multiply
    291,080.93x = 401,681.23 × 162,015.12
  4. Step 4: Simplify right side
    291,080.93x = 65,078,432,275.16
  5. Step 5: Solve for x
    x = 65,078,432,275.16/291,080.93
  6. Step 6: Final answer
    x = 223,575.05

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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.