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Finding the Fourth Proportional to 255,637.45, 352,806.06 and 153,696.25

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Solution

The fourth proportional to 255,637.45, 352,806.06 and 153,696.25 is: 212,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,637.45 : 352,806.06 = 153,696.25 : x
  2. Step 2: Convert to fraction form
    255,637.45/352,806.06 = 153,696.25/x
  3. Step 3: Cross multiply
    255,637.45x = 352,806.06 × 153,696.25
  4. Step 4: Simplify right side
    255,637.45x = 54,224,968,399.28
  5. Step 5: Solve for x
    x = 54,224,968,399.28/255,637.45
  6. Step 6: Final answer
    x = 212,116.68

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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.