Home / 209,322.90-288,867.66-113,831.67

Finding the Fourth Proportional to 209,322.90, 288,867.66 and 113,831.67

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Solution

The fourth proportional to 209,322.90, 288,867.66 and 113,831.67 is: 157,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.90 : 288,867.66 = 113,831.67 : x
  2. Step 2: Convert to fraction form
    209,322.90/288,867.66 = 113,831.67/x
  3. Step 3: Cross multiply
    209,322.90x = 288,867.66 × 113,831.67
  4. Step 4: Simplify right side
    209,322.90x = 32,882,288,146.79
  5. Step 5: Solve for x
    x = 32,882,288,146.79/209,322.90
  6. Step 6: Final answer
    x = 157,088.82

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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.