Home / 320,867.64-442,802.61-175,671

Finding the Fourth Proportional to 320,867.64, 442,802.61 and 175,671

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Solution

The fourth proportional to 320,867.64, 442,802.61 and 175,671 is: 242,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,867.64 : 442,802.61 = 175,671 : x
  2. Step 2: Convert to fraction form
    320,867.64/442,802.61 = 175,671/x
  3. Step 3: Cross multiply
    320,867.64x = 442,802.61 × 175,671
  4. Step 4: Simplify right side
    320,867.64x = 77,787,577,301.31
  5. Step 5: Solve for x
    x = 77,787,577,301.31/320,867.64
  6. Step 6: Final answer
    x = 242,428.86

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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.