Home / 395,131.04-545,259.92-216,248.48

Finding the Fourth Proportional to 395,131.04, 545,259.92 and 216,248.48

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Solution

The fourth proportional to 395,131.04, 545,259.92 and 216,248.48 is: 298,411.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,131.04 : 545,259.92 = 216,248.48 : x
  2. Step 2: Convert to fraction form
    395,131.04/545,259.92 = 216,248.48/x
  3. Step 3: Cross multiply
    395,131.04x = 545,259.92 × 216,248.48
  4. Step 4: Simplify right side
    395,131.04x = 117,911,628,904.92
  5. Step 5: Solve for x
    x = 117,911,628,904.92/395,131.04
  6. Step 6: Final answer
    x = 298,411.46

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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.