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Finding the Fourth Proportional to 342,174.40, 514,136.40 and 303,683.20

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Solution

The fourth proportional to 342,174.40, 514,136.40 and 303,683.20 is: 456,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,174.40 : 514,136.40 = 303,683.20 : x
  2. Step 2: Convert to fraction form
    342,174.40/514,136.40 = 303,683.20/x
  3. Step 3: Cross multiply
    342,174.40x = 514,136.40 × 303,683.20
  4. Step 4: Simplify right side
    342,174.40x = 156,134,587,188.48
  5. Step 5: Solve for x
    x = 156,134,587,188.48/342,174.40
  6. Step 6: Final answer
    x = 456,301.19

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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.