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Finding the Fourth Proportional to 210,396.84, 315,598.14 and 60,639.72

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Solution

The fourth proportional to 210,396.84, 315,598.14 and 60,639.72 is: 90,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,396.84 : 315,598.14 = 60,639.72 : x
  2. Step 2: Convert to fraction form
    210,396.84/315,598.14 = 60,639.72/x
  3. Step 3: Cross multiply
    210,396.84x = 315,598.14 × 60,639.72
  4. Step 4: Simplify right side
    210,396.84x = 19,137,782,842.12
  5. Step 5: Solve for x
    x = 19,137,782,842.12/210,396.84
  6. Step 6: Final answer
    x = 90,960.41

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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.