Home / 245,792.07-339,182.74-138,358.13

Finding the Fourth Proportional to 245,792.07, 339,182.74 and 138,358.13

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Solution

The fourth proportional to 245,792.07, 339,182.74 and 138,358.13 is: 190,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,792.07 : 339,182.74 = 138,358.13 : x
  2. Step 2: Convert to fraction form
    245,792.07/339,182.74 = 138,358.13/x
  3. Step 3: Cross multiply
    245,792.07x = 339,182.74 × 138,358.13
  4. Step 4: Simplify right side
    245,792.07x = 46,928,688,111.71
  5. Step 5: Solve for x
    x = 46,928,688,111.71/245,792.07
  6. Step 6: Final answer
    x = 190,928.41

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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.