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Finding the Fourth Proportional to 342,888.40, 514,414.72 and 143,097.65

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Solution

The fourth proportional to 342,888.40, 514,414.72 and 143,097.65 is: 214,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,888.40 : 514,414.72 = 143,097.65 : x
  2. Step 2: Convert to fraction form
    342,888.40/514,414.72 = 143,097.65/x
  3. Step 3: Cross multiply
    342,888.40x = 514,414.72 × 143,097.65
  4. Step 4: Simplify right side
    342,888.40x = 73,611,537,093.26
  5. Step 5: Solve for x
    x = 73,611,537,093.26/342,888.40
  6. Step 6: Final answer
    x = 214,680.74

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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.