Home / 315,206.17-435,018.03-192,770.18

Finding the Fourth Proportional to 315,206.17, 435,018.03 and 192,770.18

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Solution

The fourth proportional to 315,206.17, 435,018.03 and 192,770.18 is: 266,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,206.17 : 435,018.03 = 192,770.18 : x
  2. Step 2: Convert to fraction form
    315,206.17/435,018.03 = 192,770.18/x
  3. Step 3: Cross multiply
    315,206.17x = 435,018.03 × 192,770.18
  4. Step 4: Simplify right side
    315,206.17x = 83,858,502,863.42
  5. Step 5: Solve for x
    x = 83,858,502,863.42/315,206.17
  6. Step 6: Final answer
    x = 266,043.34

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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.