Home / 338,631.20-507,946.80-170,669.60

Finding the Fourth Proportional to 338,631.20, 507,946.80 and 170,669.60

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Solution

The fourth proportional to 338,631.20, 507,946.80 and 170,669.60 is: 256,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,631.20 : 507,946.80 = 170,669.60 : x
  2. Step 2: Convert to fraction form
    338,631.20/507,946.80 = 170,669.60/x
  3. Step 3: Cross multiply
    338,631.20x = 507,946.80 × 170,669.60
  4. Step 4: Simplify right side
    338,631.20x = 86,691,077,177.28
  5. Step 5: Solve for x
    x = 86,691,077,177.28/338,631.20
  6. Step 6: Final answer
    x = 256,004.40

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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.