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Finding the Fourth Proportional to 210,008.30, 314,810.85 and 69,694.70

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Solution

The fourth proportional to 210,008.30, 314,810.85 and 69,694.70 is: 104,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,008.30 : 314,810.85 = 69,694.70 : x
  2. Step 2: Convert to fraction form
    210,008.30/314,810.85 = 69,694.70/x
  3. Step 3: Cross multiply
    210,008.30x = 314,810.85 × 69,694.70
  4. Step 4: Simplify right side
    210,008.30x = 21,940,647,747.50
  5. Step 5: Solve for x
    x = 21,940,647,747.50/210,008.30
  6. Step 6: Final answer
    x = 104,475.15

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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.