Home / 228,729.42-315,647.28-126,756.54

Finding the Fourth Proportional to 228,729.42, 315,647.28 and 126,756.54

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Solution

The fourth proportional to 228,729.42, 315,647.28 and 126,756.54 is: 174,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,729.42 : 315,647.28 = 126,756.54 : x
  2. Step 2: Convert to fraction form
    228,729.42/315,647.28 = 126,756.54/x
  3. Step 3: Cross multiply
    228,729.42x = 315,647.28 × 126,756.54
  4. Step 4: Simplify right side
    228,729.42x = 40,010,357,073.21
  5. Step 5: Solve for x
    x = 40,010,357,073.21/228,729.42
  6. Step 6: Final answer
    x = 174,924.40

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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.