Home / 312,048.78-430,626.96-168,808.50

Finding the Fourth Proportional to 312,048.78, 430,626.96 and 168,808.50

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Solution

The fourth proportional to 312,048.78, 430,626.96 and 168,808.50 is: 232,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,048.78 : 430,626.96 = 168,808.50 : x
  2. Step 2: Convert to fraction form
    312,048.78/430,626.96 = 168,808.50/x
  3. Step 3: Cross multiply
    312,048.78x = 430,626.96 × 168,808.50
  4. Step 4: Simplify right side
    312,048.78x = 72,693,491,177.16
  5. Step 5: Solve for x
    x = 72,693,491,177.16/312,048.78
  6. Step 6: Final answer
    x = 232,955.54

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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.