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Finding the Fourth Proportional to 304,058.40, 456,087.60 and 256,819.20

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Solution

The fourth proportional to 304,058.40, 456,087.60 and 256,819.20 is: 385,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,058.40 : 456,087.60 = 256,819.20 : x
  2. Step 2: Convert to fraction form
    304,058.40/456,087.60 = 256,819.20/x
  3. Step 3: Cross multiply
    304,058.40x = 456,087.60 × 256,819.20
  4. Step 4: Simplify right side
    304,058.40x = 117,132,052,561.92
  5. Step 5: Solve for x
    x = 117,132,052,561.92/304,058.40
  6. Step 6: Final answer
    x = 385,228.80

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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.