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Finding the Fourth Proportional to 173,217.60, 260,085.60 and 120,859.20

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Solution

The fourth proportional to 173,217.60, 260,085.60 and 120,859.20 is: 181,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,217.60 : 260,085.60 = 120,859.20 : x
  2. Step 2: Convert to fraction form
    173,217.60/260,085.60 = 120,859.20/x
  3. Step 3: Cross multiply
    173,217.60x = 260,085.60 × 120,859.20
  4. Step 4: Simplify right side
    173,217.60x = 31,433,737,547.52
  5. Step 5: Solve for x
    x = 31,433,737,547.52/173,217.60
  6. Step 6: Final answer
    x = 181,469.65

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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.