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Finding the Fourth Proportional to 210,484.53, 315,506.27 and 98,072.05

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Solution

The fourth proportional to 210,484.53, 315,506.27 and 98,072.05 is: 147,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,484.53 : 315,506.27 = 98,072.05 : x
  2. Step 2: Convert to fraction form
    210,484.53/315,506.27 = 98,072.05/x
  3. Step 3: Cross multiply
    210,484.53x = 315,506.27 × 98,072.05
  4. Step 4: Simplify right side
    210,484.53x = 30,942,346,686.75
  5. Step 5: Solve for x
    x = 30,942,346,686.75/210,484.53
  6. Step 6: Final answer
    x = 147,005.32

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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.