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Finding the Fourth Proportional to 273,208.60, 409,812.90 and 256,587.40

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Solution

The fourth proportional to 273,208.60, 409,812.90 and 256,587.40 is: 384,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,208.60 : 409,812.90 = 256,587.40 : x
  2. Step 2: Convert to fraction form
    273,208.60/409,812.90 = 256,587.40/x
  3. Step 3: Cross multiply
    273,208.60x = 409,812.90 × 256,587.40
  4. Step 4: Simplify right side
    273,208.60x = 105,152,826,497.46
  5. Step 5: Solve for x
    x = 105,152,826,497.46/273,208.60
  6. Step 6: Final answer
    x = 384,881.10

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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.