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Finding the Fourth Proportional to 172,802.50, 259,218.60 and 48,143.50

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Solution

The fourth proportional to 172,802.50, 259,218.60 and 48,143.50 is: 72,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,802.50 : 259,218.60 = 48,143.50 : x
  2. Step 2: Convert to fraction form
    172,802.50/259,218.60 = 48,143.50/x
  3. Step 3: Cross multiply
    172,802.50x = 259,218.60 × 48,143.50
  4. Step 4: Simplify right side
    172,802.50x = 12,479,690,669.10
  5. Step 5: Solve for x
    x = 12,479,690,669.10/172,802.50
  6. Step 6: Final answer
    x = 72,219.39

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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.