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Finding the Fourth Proportional to 342,995.54, 514,493.32 and 143,207.16

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Solution

The fourth proportional to 342,995.54, 514,493.32 and 143,207.16 is: 214,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,995.54 : 514,493.32 = 143,207.16 : x
  2. Step 2: Convert to fraction form
    342,995.54/514,493.32 = 143,207.16/x
  3. Step 3: Cross multiply
    342,995.54x = 514,493.32 × 143,207.16
  4. Step 4: Simplify right side
    342,995.54x = 73,679,127,196.17
  5. Step 5: Solve for x
    x = 73,679,127,196.17/342,995.54
  6. Step 6: Final answer
    x = 214,810.74

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Similar ratio
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1.5x scale

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.