Home / 285,139.65-393,466.06-170,395.52

Finding the Fourth Proportional to 285,139.65, 393,466.06 and 170,395.52

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Solution

The fourth proportional to 285,139.65, 393,466.06 and 170,395.52 is: 235,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,139.65 : 393,466.06 = 170,395.52 : x
  2. Step 2: Convert to fraction form
    285,139.65/393,466.06 = 170,395.52/x
  3. Step 3: Cross multiply
    285,139.65x = 393,466.06 × 170,395.52
  4. Step 4: Simplify right side
    285,139.65x = 67,044,854,453.73
  5. Step 5: Solve for x
    x = 67,044,854,453.73/285,139.65
  6. Step 6: Final answer
    x = 235,129.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.