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Finding the Fourth Proportional to 172,920.30, 259,380.45 and 152,184.30

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Solution

The fourth proportional to 172,920.30, 259,380.45 and 152,184.30 is: 228,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,920.30 : 259,380.45 = 152,184.30 : x
  2. Step 2: Convert to fraction form
    172,920.30/259,380.45 = 152,184.30/x
  3. Step 3: Cross multiply
    172,920.30x = 259,380.45 × 152,184.30
  4. Step 4: Simplify right side
    172,920.30x = 39,473,632,216.94
  5. Step 5: Solve for x
    x = 39,473,632,216.94/172,920.30
  6. Step 6: Final answer
    x = 228,276.45

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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.