Home / 285,919.45-428,337.80-190,862.98

Finding the Fourth Proportional to 285,919.45, 428,337.80 and 190,862.98

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Solution

The fourth proportional to 285,919.45, 428,337.80 and 190,862.98 is: 285,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,919.45 : 428,337.80 = 190,862.98 : x
  2. Step 2: Convert to fraction form
    285,919.45/428,337.80 = 190,862.98/x
  3. Step 3: Cross multiply
    285,919.45x = 428,337.80 × 190,862.98
  4. Step 4: Simplify right side
    285,919.45x = 81,753,828,954.64
  5. Step 5: Solve for x
    x = 81,753,828,954.64/285,919.45
  6. Step 6: Final answer
    x = 285,933.08

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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.