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Finding the Fourth Proportional to 292,403.88, 403,584 and 190,249.12

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Solution

The fourth proportional to 292,403.88, 403,584 and 190,249.12 is: 262,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,403.88 : 403,584 = 190,249.12 : x
  2. Step 2: Convert to fraction form
    292,403.88/403,584 = 190,249.12/x
  3. Step 3: Cross multiply
    292,403.88x = 403,584 × 190,249.12
  4. Step 4: Simplify right side
    292,403.88x = 76,781,500,846.08
  5. Step 5: Solve for x
    x = 76,781,500,846.08/292,403.88
  6. Step 6: Final answer
    x = 262,587.15

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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.