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Finding the Fourth Proportional to 408,928.08, 564,598.50 and 256,028.07

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Solution

The fourth proportional to 408,928.08, 564,598.50 and 256,028.07 is: 353,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,928.08 : 564,598.50 = 256,028.07 : x
  2. Step 2: Convert to fraction form
    408,928.08/564,598.50 = 256,028.07/x
  3. Step 3: Cross multiply
    408,928.08x = 564,598.50 × 256,028.07
  4. Step 4: Simplify right side
    408,928.08x = 144,553,064,279.90
  5. Step 5: Solve for x
    x = 144,553,064,279.90/408,928.08
  6. Step 6: Final answer
    x = 353,492.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.