Home / 205,036.20-307,554.30-200,428.20

Finding the Fourth Proportional to 205,036.20, 307,554.30 and 200,428.20

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Solution

The fourth proportional to 205,036.20, 307,554.30 and 200,428.20 is: 300,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,036.20 : 307,554.30 = 200,428.20 : x
  2. Step 2: Convert to fraction form
    205,036.20/307,554.30 = 200,428.20/x
  3. Step 3: Cross multiply
    205,036.20x = 307,554.30 × 200,428.20
  4. Step 4: Simplify right side
    205,036.20x = 61,642,554,751.26
  5. Step 5: Solve for x
    x = 61,642,554,751.26/205,036.20
  6. Step 6: Final answer
    x = 300,642.30

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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.