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Finding the Fourth Proportional to 217,875.60, 326,813.40 and 162,579.60

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Solution

The fourth proportional to 217,875.60, 326,813.40 and 162,579.60 is: 243,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,875.60 : 326,813.40 = 162,579.60 : x
  2. Step 2: Convert to fraction form
    217,875.60/326,813.40 = 162,579.60/x
  3. Step 3: Cross multiply
    217,875.60x = 326,813.40 × 162,579.60
  4. Step 4: Simplify right side
    217,875.60x = 53,133,191,846.64
  5. Step 5: Solve for x
    x = 53,133,191,846.64/217,875.60
  6. Step 6: Final answer
    x = 243,869.40

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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.