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Finding the Fourth Proportional to 303,140.70, 454,711.05 and 249,996.60

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Solution

The fourth proportional to 303,140.70, 454,711.05 and 249,996.60 is: 374,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,140.70 : 454,711.05 = 249,996.60 : x
  2. Step 2: Convert to fraction form
    303,140.70/454,711.05 = 249,996.60/x
  3. Step 3: Cross multiply
    303,140.70x = 454,711.05 × 249,996.60
  4. Step 4: Simplify right side
    303,140.70x = 113,676,216,482.43
  5. Step 5: Solve for x
    x = 113,676,216,482.43/303,140.70
  6. Step 6: Final answer
    x = 374,994.90

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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.