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Finding the Fourth Proportional to 342,871.32, 514,389.08 and 143,080.56

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Solution

The fourth proportional to 342,871.32, 514,389.08 and 143,080.56 is: 214,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,871.32 : 514,389.08 = 143,080.56 : x
  2. Step 2: Convert to fraction form
    342,871.32/514,389.08 = 143,080.56/x
  3. Step 3: Cross multiply
    342,871.32x = 514,389.08 × 143,080.56
  4. Step 4: Simplify right side
    342,871.32x = 73,599,077,624.28
  5. Step 5: Solve for x
    x = 73,599,077,624.28/342,871.32
  6. Step 6: Final answer
    x = 214,655.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.