Home / 358,923.24-495,314.10-208,107.72

Finding the Fourth Proportional to 358,923.24, 495,314.10 and 208,107.72

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Solution

The fourth proportional to 358,923.24, 495,314.10 and 208,107.72 is: 287,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,923.24 : 495,314.10 = 208,107.72 : x
  2. Step 2: Convert to fraction form
    358,923.24/495,314.10 = 208,107.72/x
  3. Step 3: Cross multiply
    358,923.24x = 495,314.10 × 208,107.72
  4. Step 4: Simplify right side
    358,923.24x = 103,078,688,034.85
  5. Step 5: Solve for x
    x = 103,078,688,034.85/358,923.24
  6. Step 6: Final answer
    x = 287,188.67

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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.