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Finding the Fourth Proportional to 358,924.74, 495,316.17 and 208,109.22

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Solution

The fourth proportional to 358,924.74, 495,316.17 and 208,109.22 is: 287,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,924.74 : 495,316.17 = 208,109.22 : x
  2. Step 2: Convert to fraction form
    358,924.74/495,316.17 = 208,109.22/x
  3. Step 3: Cross multiply
    358,924.74x = 495,316.17 × 208,109.22
  4. Step 4: Simplify right side
    358,924.74x = 103,079,861,792.09
  5. Step 5: Solve for x
    x = 103,079,861,792.09/358,924.74
  6. Step 6: Final answer
    x = 287,190.74

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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.