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Finding the Fourth Proportional to 352,289.50, 486,159.54 and 201,389.74

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Solution

The fourth proportional to 352,289.50, 486,159.54 and 201,389.74 is: 277,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,289.50 : 486,159.54 = 201,389.74 : x
  2. Step 2: Convert to fraction form
    352,289.50/486,159.54 = 201,389.74/x
  3. Step 3: Cross multiply
    352,289.50x = 486,159.54 × 201,389.74
  4. Step 4: Simplify right side
    352,289.50x = 97,907,543,359.12
  5. Step 5: Solve for x
    x = 97,907,543,359.12/352,289.50
  6. Step 6: Final answer
    x = 277,917.86

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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.