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Finding the Fourth Proportional to 513,545.04, 770,162.04 and 139,519.44

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Solution

The fourth proportional to 513,545.04, 770,162.04 and 139,519.44 is: 209,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,545.04 : 770,162.04 = 139,519.44 : x
  2. Step 2: Convert to fraction form
    513,545.04/770,162.04 = 139,519.44/x
  3. Step 3: Cross multiply
    513,545.04x = 770,162.04 × 139,519.44
  4. Step 4: Simplify right side
    513,545.04x = 107,452,576,530.06
  5. Step 5: Solve for x
    x = 107,452,576,530.06/513,545.04
  6. Step 6: Final answer
    x = 209,236.91

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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.