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Finding the Fourth Proportional to 312,004.70, 468,007.05 and 170,287.10

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Solution

The fourth proportional to 312,004.70, 468,007.05 and 170,287.10 is: 255,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,004.70 : 468,007.05 = 170,287.10 : x
  2. Step 2: Convert to fraction form
    312,004.70/468,007.05 = 170,287.10/x
  3. Step 3: Cross multiply
    312,004.70x = 468,007.05 × 170,287.10
  4. Step 4: Simplify right side
    312,004.70x = 79,695,563,324.06
  5. Step 5: Solve for x
    x = 79,695,563,324.06/312,004.70
  6. Step 6: Final answer
    x = 255,430.65

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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.