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Finding the Fourth Proportional to 353,465.50, 487,215.25 and 238,707.46

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Solution

The fourth proportional to 353,465.50, 487,215.25 and 238,707.46 is: 329,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,465.50 : 487,215.25 = 238,707.46 : x
  2. Step 2: Convert to fraction form
    353,465.50/487,215.25 = 238,707.46/x
  3. Step 3: Cross multiply
    353,465.50x = 487,215.25 × 238,707.46
  4. Step 4: Simplify right side
    353,465.50x = 116,301,914,987.75
  5. Step 5: Solve for x
    x = 116,301,914,987.75/353,465.50
  6. Step 6: Final answer
    x = 329,033.28

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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.