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Finding the Fourth Proportional to 495,174, 683,348.40 and 268,819.50

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Solution

The fourth proportional to 495,174, 683,348.40 and 268,819.50 is: 370,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,174 : 683,348.40 = 268,819.50 : x
  2. Step 2: Convert to fraction form
    495,174/683,348.40 = 268,819.50/x
  3. Step 3: Cross multiply
    495,174x = 683,348.40 × 268,819.50
  4. Step 4: Simplify right side
    495,174x = 183,697,375,213.80
  5. Step 5: Solve for x
    x = 183,697,375,213.80/495,174
  6. Step 6: Final answer
    x = 370,975.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.