Home / 309,823.55-427,598.99-173,865.53

Finding the Fourth Proportional to 309,823.55, 427,598.99 and 173,865.53

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Solution

The fourth proportional to 309,823.55, 427,598.99 and 173,865.53 is: 239,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,823.55 : 427,598.99 = 173,865.53 : x
  2. Step 2: Convert to fraction form
    309,823.55/427,598.99 = 173,865.53/x
  3. Step 3: Cross multiply
    309,823.55x = 427,598.99 × 173,865.53
  4. Step 4: Simplify right side
    309,823.55x = 74,344,726,430.57
  5. Step 5: Solve for x
    x = 74,344,726,430.57/309,823.55
  6. Step 6: Final answer
    x = 239,958.28

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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.