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Finding the Fourth Proportional to 354,696.60, 531,353.70 and 214,037.40

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Solution

The fourth proportional to 354,696.60, 531,353.70 and 214,037.40 is: 320,639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,696.60 : 531,353.70 = 214,037.40 : x
  2. Step 2: Convert to fraction form
    354,696.60/531,353.70 = 214,037.40/x
  3. Step 3: Cross multiply
    354,696.60x = 531,353.70 × 214,037.40
  4. Step 4: Simplify right side
    354,696.60x = 113,729,564,428.38
  5. Step 5: Solve for x
    x = 113,729,564,428.38/354,696.60
  6. Step 6: Final answer
    x = 320,639.00

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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.