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Finding the Fourth Proportional to 358,474.60, 495,138.18 and 262,829.80

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Solution

The fourth proportional to 358,474.60, 495,138.18 and 262,829.80 is: 363,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,474.60 : 495,138.18 = 262,829.80 : x
  2. Step 2: Convert to fraction form
    358,474.60/495,138.18 = 262,829.80/x
  3. Step 3: Cross multiply
    358,474.60x = 495,138.18 × 262,829.80
  4. Step 4: Simplify right side
    358,474.60x = 130,137,068,821.76
  5. Step 5: Solve for x
    x = 130,137,068,821.76/358,474.60
  6. Step 6: Final answer
    x = 363,030.10

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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.