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Finding the Fourth Proportional to 371,345.52, 512,467.56 and 201,590.40

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Solution

The fourth proportional to 371,345.52, 512,467.56 and 201,590.40 is: 278,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,345.52 : 512,467.56 = 201,590.40 : x
  2. Step 2: Convert to fraction form
    371,345.52/512,467.56 = 201,590.40/x
  3. Step 3: Cross multiply
    371,345.52x = 512,467.56 × 201,590.40
  4. Step 4: Simplify right side
    371,345.52x = 103,308,540,407.42
  5. Step 5: Solve for x
    x = 103,308,540,407.42/371,345.52
  6. Step 6: Final answer
    x = 278,200.58

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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.