Home / 427,500.10-641,249.63-171,448.19

Finding the Fourth Proportional to 427,500.10, 641,249.63 and 171,448.19

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Solution

The fourth proportional to 427,500.10, 641,249.63 and 171,448.19 is: 257,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,500.10 : 641,249.63 = 171,448.19 : x
  2. Step 2: Convert to fraction form
    427,500.10/641,249.63 = 171,448.19/x
  3. Step 3: Cross multiply
    427,500.10x = 641,249.63 × 171,448.19
  4. Step 4: Simplify right side
    427,500.10x = 109,941,088,401.67
  5. Step 5: Solve for x
    x = 109,941,088,401.67/427,500.10
  6. Step 6: Final answer
    x = 257,172.08

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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.