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Finding the Fourth Proportional to 350,130.40, 525,195.60 and 312,076.60

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Solution

The fourth proportional to 350,130.40, 525,195.60 and 312,076.60 is: 468,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,130.40 : 525,195.60 = 312,076.60 : x
  2. Step 2: Convert to fraction form
    350,130.40/525,195.60 = 312,076.60/x
  3. Step 3: Cross multiply
    350,130.40x = 525,195.60 × 312,076.60
  4. Step 4: Simplify right side
    350,130.40x = 163,901,257,182.96
  5. Step 5: Solve for x
    x = 163,901,257,182.96/350,130.40
  6. Step 6: Final answer
    x = 468,114.90

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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.