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Finding the Fourth Proportional to 210,482.56, 315,219.48 and 153,403.48

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Solution

The fourth proportional to 210,482.56, 315,219.48 and 153,403.48 is: 229,737.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,482.56 : 315,219.48 = 153,403.48 : x
  2. Step 2: Convert to fraction form
    210,482.56/315,219.48 = 153,403.48/x
  3. Step 3: Cross multiply
    210,482.56x = 315,219.48 × 153,403.48
  4. Step 4: Simplify right side
    210,482.56x = 48,355,765,195.79
  5. Step 5: Solve for x
    x = 48,355,765,195.79/210,482.56
  6. Step 6: Final answer
    x = 229,737.63

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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.