Home / 309,030.15-426,451.64-171,203.41

Finding the Fourth Proportional to 309,030.15, 426,451.64 and 171,203.41

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Solution

The fourth proportional to 309,030.15, 426,451.64 and 171,203.41 is: 236,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,030.15 : 426,451.64 = 171,203.41 : x
  2. Step 2: Convert to fraction form
    309,030.15/426,451.64 = 171,203.41/x
  3. Step 3: Cross multiply
    309,030.15x = 426,451.64 × 171,203.41
  4. Step 4: Simplify right side
    309,030.15x = 73,009,974,968.09
  5. Step 5: Solve for x
    x = 73,009,974,968.09/309,030.15
  6. Step 6: Final answer
    x = 236,255.18

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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.