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Finding the Fourth Proportional to 362,296.80, 542,408.40 and 320,824.80

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Solution

The fourth proportional to 362,296.80, 542,408.40 and 320,824.80 is: 480,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,296.80 : 542,408.40 = 320,824.80 : x
  2. Step 2: Convert to fraction form
    362,296.80/542,408.40 = 320,824.80/x
  3. Step 3: Cross multiply
    362,296.80x = 542,408.40 × 320,824.80
  4. Step 4: Simplify right side
    362,296.80x = 174,018,066,448.32
  5. Step 5: Solve for x
    x = 174,018,066,448.32/362,296.80
  6. Step 6: Final answer
    x = 480,319.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.