Home / 247,007.29-340,865.61-139,575

Finding the Fourth Proportional to 247,007.29, 340,865.61 and 139,575

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Solution

The fourth proportional to 247,007.29, 340,865.61 and 139,575 is: 192,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,007.29 : 340,865.61 = 139,575 : x
  2. Step 2: Convert to fraction form
    247,007.29/340,865.61 = 139,575/x
  3. Step 3: Cross multiply
    247,007.29x = 340,865.61 × 139,575
  4. Step 4: Simplify right side
    247,007.29x = 47,576,317,515.75
  5. Step 5: Solve for x
    x = 47,576,317,515.75/247,007.29
  6. Step 6: Final answer
    x = 192,610.99

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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.