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Finding the Fourth Proportional to 342,675.38, 514,192.89 and 140,421.62

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Solution

The fourth proportional to 342,675.38, 514,192.89 and 140,421.62 is: 210,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,675.38 : 514,192.89 = 140,421.62 : x
  2. Step 2: Convert to fraction form
    342,675.38/514,192.89 = 140,421.62/x
  3. Step 3: Cross multiply
    342,675.38x = 514,192.89 × 140,421.62
  4. Step 4: Simplify right side
    342,675.38x = 72,203,798,606.28
  5. Step 5: Solve for x
    x = 72,203,798,606.28/342,675.38
  6. Step 6: Final answer
    x = 210,706.12

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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.