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Finding the Fourth Proportional to 210,703.60, 315,594.60 and 163,586.80

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Solution

The fourth proportional to 210,703.60, 315,594.60 and 163,586.80 is: 245,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,703.60 : 315,594.60 = 163,586.80 : x
  2. Step 2: Convert to fraction form
    210,703.60/315,594.60 = 163,586.80/x
  3. Step 3: Cross multiply
    210,703.60x = 315,594.60 × 163,586.80
  4. Step 4: Simplify right side
    210,703.60x = 51,627,110,711.28
  5. Step 5: Solve for x
    x = 51,627,110,711.28/210,703.60
  6. Step 6: Final answer
    x = 245,022.44

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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.