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Finding the Fourth Proportional to 303,071.70, 455,591.70 and 214,935.60

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Solution

The fourth proportional to 303,071.70, 455,591.70 and 214,935.60 is: 323,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,071.70 : 455,591.70 = 214,935.60 : x
  2. Step 2: Convert to fraction form
    303,071.70/455,591.70 = 214,935.60/x
  3. Step 3: Cross multiply
    303,071.70x = 455,591.70 × 214,935.60
  4. Step 4: Simplify right side
    303,071.70x = 97,922,875,394.52
  5. Step 5: Solve for x
    x = 97,922,875,394.52/303,071.70
  6. Step 6: Final answer
    x = 323,101.35

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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.