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Finding the Fourth Proportional to 305,760.60, 458,640.90 and 293,513.40

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Solution

The fourth proportional to 305,760.60, 458,640.90 and 293,513.40 is: 440,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,760.60 : 458,640.90 = 293,513.40 : x
  2. Step 2: Convert to fraction form
    305,760.60/458,640.90 = 293,513.40/x
  3. Step 3: Cross multiply
    305,760.60x = 458,640.90 × 293,513.40
  4. Step 4: Simplify right side
    305,760.60x = 134,617,249,938.06
  5. Step 5: Solve for x
    x = 134,617,249,938.06/305,760.60
  6. Step 6: Final answer
    x = 440,270.10

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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.