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Finding the Fourth Proportional to 303,315.60, 454,973.40 and 256,076.40

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Solution

The fourth proportional to 303,315.60, 454,973.40 and 256,076.40 is: 384,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,315.60 : 454,973.40 = 256,076.40 : x
  2. Step 2: Convert to fraction form
    303,315.60/454,973.40 = 256,076.40/x
  3. Step 3: Cross multiply
    303,315.60x = 454,973.40 × 256,076.40
  4. Step 4: Simplify right side
    303,315.60x = 116,507,950,367.76
  5. Step 5: Solve for x
    x = 116,507,950,367.76/303,315.60
  6. Step 6: Final answer
    x = 384,114.60

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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.