Home / 207,623.10-311,434.65-102,647.10

Finding the Fourth Proportional to 207,623.10, 311,434.65 and 102,647.10

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Solution

The fourth proportional to 207,623.10, 311,434.65 and 102,647.10 is: 153,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,623.10 : 311,434.65 = 102,647.10 : x
  2. Step 2: Convert to fraction form
    207,623.10/311,434.65 = 102,647.10/x
  3. Step 3: Cross multiply
    207,623.10x = 311,434.65 × 102,647.10
  4. Step 4: Simplify right side
    207,623.10x = 31,967,863,662.02
  5. Step 5: Solve for x
    x = 31,967,863,662.02/207,623.10
  6. Step 6: Final answer
    x = 153,970.65

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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.