Home / 228,332.90-315,226.08-137,711.72

Finding the Fourth Proportional to 228,332.90, 315,226.08 and 137,711.72

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Solution

The fourth proportional to 228,332.90, 315,226.08 and 137,711.72 is: 190,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,332.90 : 315,226.08 = 137,711.72 : x
  2. Step 2: Convert to fraction form
    228,332.90/315,226.08 = 137,711.72/x
  3. Step 3: Cross multiply
    228,332.90x = 315,226.08 × 137,711.72
  4. Step 4: Simplify right side
    228,332.90x = 43,410,325,665.66
  5. Step 5: Solve for x
    x = 43,410,325,665.66/228,332.90
  6. Step 6: Final answer
    x = 190,118.58

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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.