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Finding the Fourth Proportional to 144,798.90, 217,198.35 and 139,550.10

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Solution

The fourth proportional to 144,798.90, 217,198.35 and 139,550.10 is: 209,325.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,798.90 : 217,198.35 = 139,550.10 : x
  2. Step 2: Convert to fraction form
    144,798.90/217,198.35 = 139,550.10/x
  3. Step 3: Cross multiply
    144,798.90x = 217,198.35 × 139,550.10
  4. Step 4: Simplify right side
    144,798.90x = 30,310,051,462.34
  5. Step 5: Solve for x
    x = 30,310,051,462.34/144,798.90
  6. Step 6: Final answer
    x = 209,325.15

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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.