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Finding the Fourth Proportional to 358,926, 495,317.90 and 208,110.48

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Solution

The fourth proportional to 358,926, 495,317.90 and 208,110.48 is: 287,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,926 : 495,317.90 = 208,110.48 : x
  2. Step 2: Convert to fraction form
    358,926/495,317.90 = 208,110.48/x
  3. Step 3: Cross multiply
    358,926x = 495,317.90 × 208,110.48
  4. Step 4: Simplify right side
    358,926x = 103,080,845,921.59
  5. Step 5: Solve for x
    x = 103,080,845,921.59/358,926
  6. Step 6: Final answer
    x = 287,192.47

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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.