Home / 209,108.16-288,657.54-141,217.20

Finding the Fourth Proportional to 209,108.16, 288,657.54 and 141,217.20

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Solution

The fourth proportional to 209,108.16, 288,657.54 and 141,217.20 is: 194,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,108.16 : 288,657.54 = 141,217.20 : x
  2. Step 2: Convert to fraction form
    209,108.16/288,657.54 = 141,217.20/x
  3. Step 3: Cross multiply
    209,108.16x = 288,657.54 × 141,217.20
  4. Step 4: Simplify right side
    209,108.16x = 40,763,409,557.69
  5. Step 5: Solve for x
    x = 40,763,409,557.69/209,108.16
  6. Step 6: Final answer
    x = 194,939.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.