Home / 309,629.40-427,328.10-182,316.84

Finding the Fourth Proportional to 309,629.40, 427,328.10 and 182,316.84

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Solution

The fourth proportional to 309,629.40, 427,328.10 and 182,316.84 is: 251,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.40 : 427,328.10 = 182,316.84 : x
  2. Step 2: Convert to fraction form
    309,629.40/427,328.10 = 182,316.84/x
  3. Step 3: Cross multiply
    309,629.40x = 427,328.10 × 182,316.84
  4. Step 4: Simplify right side
    309,629.40x = 77,909,108,835.20
  5. Step 5: Solve for x
    x = 77,909,108,835.20/309,629.40
  6. Step 6: Final answer
    x = 251,620.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.