Home / 247,155.12-341,071.47-138,258.06

Finding the Fourth Proportional to 247,155.12, 341,071.47 and 138,258.06

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Solution

The fourth proportional to 247,155.12, 341,071.47 and 138,258.06 is: 190,794.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,155.12 : 341,071.47 = 138,258.06 : x
  2. Step 2: Convert to fraction form
    247,155.12/341,071.47 = 138,258.06/x
  3. Step 3: Cross multiply
    247,155.12x = 341,071.47 × 138,258.06
  4. Step 4: Simplify right side
    247,155.12x = 47,155,879,763.55
  5. Step 5: Solve for x
    x = 47,155,879,763.55/247,155.12
  6. Step 6: Final answer
    x = 190,794.67

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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.