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Finding the Fourth Proportional to 307,437.12, 461,244.98 and 127,489.54

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Solution

The fourth proportional to 307,437.12, 461,244.98 and 127,489.54 is: 191,271.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,437.12 : 461,244.98 = 127,489.54 : x
  2. Step 2: Convert to fraction form
    307,437.12/461,244.98 = 127,489.54/x
  3. Step 3: Cross multiply
    307,437.12x = 461,244.98 × 127,489.54
  4. Step 4: Simplify right side
    307,437.12x = 58,803,910,327.51
  5. Step 5: Solve for x
    x = 58,803,910,327.51/307,437.12
  6. Step 6: Final answer
    x = 191,271.34

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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.