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Finding the Fourth Proportional to 303,054.30, 454,711.05 and 190,820.70

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Solution

The fourth proportional to 303,054.30, 454,711.05 and 190,820.70 is: 286,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,054.30 : 454,711.05 = 190,820.70 : x
  2. Step 2: Convert to fraction form
    303,054.30/454,711.05 = 190,820.70/x
  3. Step 3: Cross multiply
    303,054.30x = 454,711.05 × 190,820.70
  4. Step 4: Simplify right side
    303,054.30x = 86,768,280,858.74
  5. Step 5: Solve for x
    x = 86,768,280,858.74/303,054.30
  6. Step 6: Final answer
    x = 286,312.65

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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.