Home / 320,955.52-442,457.04-225,165.28

Finding the Fourth Proportional to 320,955.52, 442,457.04 and 225,165.28

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Solution

The fourth proportional to 320,955.52, 442,457.04 and 225,165.28 is: 310,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,955.52 : 442,457.04 = 225,165.28 : x
  2. Step 2: Convert to fraction form
    320,955.52/442,457.04 = 225,165.28/x
  3. Step 3: Cross multiply
    320,955.52x = 442,457.04 × 225,165.28
  4. Step 4: Simplify right side
    320,955.52x = 99,625,963,299.57
  5. Step 5: Solve for x
    x = 99,625,963,299.57/320,955.52
  6. Step 6: Final answer
    x = 310,404.27

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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.