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Finding the Fourth Proportional to 273,199.80, 410,106.90 and 211,145.40

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Solution

The fourth proportional to 273,199.80, 410,106.90 and 211,145.40 is: 316,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,199.80 : 410,106.90 = 211,145.40 : x
  2. Step 2: Convert to fraction form
    273,199.80/410,106.90 = 211,145.40/x
  3. Step 3: Cross multiply
    273,199.80x = 410,106.90 × 211,145.40
  4. Step 4: Simplify right side
    273,199.80x = 86,592,185,443.26
  5. Step 5: Solve for x
    x = 86,592,185,443.26/273,199.80
  6. Step 6: Final answer
    x = 316,955.52

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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.