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Finding the Fourth Proportional to 328,815.60, 493,223.40 and 118,460.40

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Solution

The fourth proportional to 328,815.60, 493,223.40 and 118,460.40 is: 177,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,815.60 : 493,223.40 = 118,460.40 : x
  2. Step 2: Convert to fraction form
    328,815.60/493,223.40 = 118,460.40/x
  3. Step 3: Cross multiply
    328,815.60x = 493,223.40 × 118,460.40
  4. Step 4: Simplify right side
    328,815.60x = 58,427,441,253.36
  5. Step 5: Solve for x
    x = 58,427,441,253.36/328,815.60
  6. Step 6: Final answer
    x = 177,690.60

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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.