Home / 285,140.15-393,466.75-170,396.03

Finding the Fourth Proportional to 285,140.15, 393,466.75 and 170,396.03

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Solution

The fourth proportional to 285,140.15, 393,466.75 and 170,396.03 is: 235,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,140.15 : 393,466.75 = 170,396.03 : x
  2. Step 2: Convert to fraction form
    285,140.15/393,466.75 = 170,396.03/x
  3. Step 3: Cross multiply
    285,140.15x = 393,466.75 × 170,396.03
  4. Step 4: Simplify right side
    285,140.15x = 67,045,169,317.69
  5. Step 5: Solve for x
    x = 67,045,169,317.69/285,140.15
  6. Step 6: Final answer
    x = 235,130.58

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1.5x scale

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.