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Finding the Fourth Proportional to 362,402.40, 543,603.60 and 236,431.20

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Solution

The fourth proportional to 362,402.40, 543,603.60 and 236,431.20 is: 354,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,402.40 : 543,603.60 = 236,431.20 : x
  2. Step 2: Convert to fraction form
    362,402.40/543,603.60 = 236,431.20/x
  3. Step 3: Cross multiply
    362,402.40x = 543,603.60 × 236,431.20
  4. Step 4: Simplify right side
    362,402.40x = 128,524,851,472.32
  5. Step 5: Solve for x
    x = 128,524,851,472.32/362,402.40
  6. Step 6: Final answer
    x = 354,646.80

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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.