Home / 285,711.06-428,637.98-201,635.35

Finding the Fourth Proportional to 285,711.06, 428,637.98 and 201,635.35

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Solution

The fourth proportional to 285,711.06, 428,637.98 and 201,635.35 is: 302,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,711.06 : 428,637.98 = 201,635.35 : x
  2. Step 2: Convert to fraction form
    285,711.06/428,637.98 = 201,635.35/x
  3. Step 3: Cross multiply
    285,711.06x = 428,637.98 × 201,635.35
  4. Step 4: Simplify right side
    285,711.06x = 86,428,569,120.59
  5. Step 5: Solve for x
    x = 86,428,569,120.59/285,711.06
  6. Step 6: Final answer
    x = 302,503.41

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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.