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Finding the Fourth Proportional to 292,570.60, 403,745.12 and 158,434.60

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Solution

The fourth proportional to 292,570.60, 403,745.12 and 158,434.60 is: 218,638.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,570.60 : 403,745.12 = 158,434.60 : x
  2. Step 2: Convert to fraction form
    292,570.60/403,745.12 = 158,434.60/x
  3. Step 3: Cross multiply
    292,570.60x = 403,745.12 × 158,434.60
  4. Step 4: Simplify right side
    292,570.60x = 63,967,196,589.15
  5. Step 5: Solve for x
    x = 63,967,196,589.15/292,570.60
  6. Step 6: Final answer
    x = 218,638.50

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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.