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Finding the Fourth Proportional to 301,699.20, 452,548.80 and 91,347.60

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Solution

The fourth proportional to 301,699.20, 452,548.80 and 91,347.60 is: 137,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,699.20 : 452,548.80 = 91,347.60 : x
  2. Step 2: Convert to fraction form
    301,699.20/452,548.80 = 91,347.60/x
  3. Step 3: Cross multiply
    301,699.20x = 452,548.80 × 91,347.60
  4. Step 4: Simplify right side
    301,699.20x = 41,339,246,762.88
  5. Step 5: Solve for x
    x = 41,339,246,762.88/301,699.20
  6. Step 6: Final answer
    x = 137,021.40

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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.