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Finding the Fourth Proportional to 483,491.70, 724,982.40 and 163,533.60

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Solution

The fourth proportional to 483,491.70, 724,982.40 and 163,533.60 is: 245,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,491.70 : 724,982.40 = 163,533.60 : x
  2. Step 2: Convert to fraction form
    483,491.70/724,982.40 = 163,533.60/x
  3. Step 3: Cross multiply
    483,491.70x = 724,982.40 × 163,533.60
  4. Step 4: Simplify right side
    483,491.70x = 118,558,981,808.64
  5. Step 5: Solve for x
    x = 118,558,981,808.64/483,491.70
  6. Step 6: Final answer
    x = 245,214.10

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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.