Home / 218,831.15-302,087.81-154,352.93

Finding the Fourth Proportional to 218,831.15, 302,087.81 and 154,352.93

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Solution

The fourth proportional to 218,831.15, 302,087.81 and 154,352.93 is: 213,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,831.15 : 302,087.81 = 154,352.93 : x
  2. Step 2: Convert to fraction form
    218,831.15/302,087.81 = 154,352.93/x
  3. Step 3: Cross multiply
    218,831.15x = 302,087.81 × 154,352.93
  4. Step 4: Simplify right side
    218,831.15x = 46,628,137,466.23
  5. Step 5: Solve for x
    x = 46,628,137,466.23/218,831.15
  6. Step 6: Final answer
    x = 213,078.15

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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.