Home / 205,004.80-307,507.20-163,532.80

Finding the Fourth Proportional to 205,004.80, 307,507.20 and 163,532.80

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Solution

The fourth proportional to 205,004.80, 307,507.20 and 163,532.80 is: 245,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,004.80 : 307,507.20 = 163,532.80 : x
  2. Step 2: Convert to fraction form
    205,004.80/307,507.20 = 163,532.80/x
  3. Step 3: Cross multiply
    205,004.80x = 307,507.20 × 163,532.80
  4. Step 4: Simplify right side
    205,004.80x = 50,287,513,436.16
  5. Step 5: Solve for x
    x = 50,287,513,436.16/205,004.80
  6. Step 6: Final answer
    x = 245,299.20

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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.