Home / 388,648.26-581,934.78-228,590.64

Finding the Fourth Proportional to 388,648.26, 581,934.78 and 228,590.64

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Solution

The fourth proportional to 388,648.26, 581,934.78 and 228,590.64 is: 342,275.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,648.26 : 581,934.78 = 228,590.64 : x
  2. Step 2: Convert to fraction form
    388,648.26/581,934.78 = 228,590.64/x
  3. Step 3: Cross multiply
    388,648.26x = 581,934.78 × 228,590.64
  4. Step 4: Simplify right side
    388,648.26x = 133,024,843,798.46
  5. Step 5: Solve for x
    x = 133,024,843,798.46/388,648.26
  6. Step 6: Final answer
    x = 342,275.67

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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.