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Finding the Fourth Proportional to 355,019.60, 531,492.60 and 317,694.80

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Solution

The fourth proportional to 355,019.60, 531,492.60 and 317,694.80 is: 475,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,019.60 : 531,492.60 = 317,694.80 : x
  2. Step 2: Convert to fraction form
    355,019.60/531,492.60 = 317,694.80/x
  3. Step 3: Cross multiply
    355,019.60x = 531,492.60 × 317,694.80
  4. Step 4: Simplify right side
    355,019.60x = 168,852,435,258.48
  5. Step 5: Solve for x
    x = 168,852,435,258.48/355,019.60
  6. Step 6: Final answer
    x = 475,614.40

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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.