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Finding the Fourth Proportional to 210,959.03, 316,471.41 and 70,684.85

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Solution

The fourth proportional to 210,959.03, 316,471.41 and 70,684.85 is: 106,038.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,959.03 : 316,471.41 = 70,684.85 : x
  2. Step 2: Convert to fraction form
    210,959.03/316,471.41 = 70,684.85/x
  3. Step 3: Cross multiply
    210,959.03x = 316,471.41 × 70,684.85
  4. Step 4: Simplify right side
    210,959.03x = 22,369,734,145.14
  5. Step 5: Solve for x
    x = 22,369,734,145.14/210,959.03
  6. Step 6: Final answer
    x = 106,038.29

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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.