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Finding the Fourth Proportional to 292,826.40, 439,239.60 and 135,362.40

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Solution

The fourth proportional to 292,826.40, 439,239.60 and 135,362.40 is: 203,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,826.40 : 439,239.60 = 135,362.40 : x
  2. Step 2: Convert to fraction form
    292,826.40/439,239.60 = 135,362.40/x
  3. Step 3: Cross multiply
    292,826.40x = 439,239.60 × 135,362.40
  4. Step 4: Simplify right side
    292,826.40x = 59,456,526,431.04
  5. Step 5: Solve for x
    x = 59,456,526,431.04/292,826.40
  6. Step 6: Final answer
    x = 203,043.60

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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.