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Finding the Fourth Proportional to 302,718.40, 454,077.60 and 125,571.40

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Solution

The fourth proportional to 302,718.40, 454,077.60 and 125,571.40 is: 188,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,718.40 : 454,077.60 = 125,571.40 : x
  2. Step 2: Convert to fraction form
    302,718.40/454,077.60 = 125,571.40/x
  3. Step 3: Cross multiply
    302,718.40x = 454,077.60 × 125,571.40
  4. Step 4: Simplify right side
    302,718.40x = 57,019,159,940.64
  5. Step 5: Solve for x
    x = 57,019,159,940.64/302,718.40
  6. Step 6: Final answer
    x = 188,357.10

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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.