Home / 352,905.60-528,667.20-212,246.40

Finding the Fourth Proportional to 352,905.60, 528,667.20 and 212,246.40

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Solution

The fourth proportional to 352,905.60, 528,667.20 and 212,246.40 is: 317,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,905.60 : 528,667.20 = 212,246.40 : x
  2. Step 2: Convert to fraction form
    352,905.60/528,667.20 = 212,246.40/x
  3. Step 3: Cross multiply
    352,905.60x = 528,667.20 × 212,246.40
  4. Step 4: Simplify right side
    352,905.60x = 112,207,709,998.08
  5. Step 5: Solve for x
    x = 112,207,709,998.08/352,905.60
  6. Step 6: Final answer
    x = 317,953.89

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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.