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Finding the Fourth Proportional to 202,310.70, 303,466.05 and 139,325.10

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Solution

The fourth proportional to 202,310.70, 303,466.05 and 139,325.10 is: 208,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,310.70 : 303,466.05 = 139,325.10 : x
  2. Step 2: Convert to fraction form
    202,310.70/303,466.05 = 139,325.10/x
  3. Step 3: Cross multiply
    202,310.70x = 303,466.05 × 139,325.10
  4. Step 4: Simplify right side
    202,310.70x = 42,280,437,762.86
  5. Step 5: Solve for x
    x = 42,280,437,762.86/202,310.70
  6. Step 6: Final answer
    x = 208,987.65

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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.