Home / 251,831.71-377,878.79-111,557.53

Finding the Fourth Proportional to 251,831.71, 377,878.79 and 111,557.53

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Solution

The fourth proportional to 251,831.71, 377,878.79 and 111,557.53 is: 167,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,831.71 : 377,878.79 = 111,557.53 : x
  2. Step 2: Convert to fraction form
    251,831.71/377,878.79 = 111,557.53/x
  3. Step 3: Cross multiply
    251,831.71x = 377,878.79 × 111,557.53
  4. Step 4: Simplify right side
    251,831.71x = 42,155,225,203.03
  5. Step 5: Solve for x
    x = 42,155,225,203.03/251,831.71
  6. Step 6: Final answer
    x = 167,394.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.