Home / 287,629.01-396,941.54-160,305.51

Finding the Fourth Proportional to 287,629.01, 396,941.54 and 160,305.51

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Solution

The fourth proportional to 287,629.01, 396,941.54 and 160,305.51 is: 221,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,629.01 : 396,941.54 = 160,305.51 : x
  2. Step 2: Convert to fraction form
    287,629.01/396,941.54 = 160,305.51/x
  3. Step 3: Cross multiply
    287,629.01x = 396,941.54 × 160,305.51
  4. Step 4: Simplify right side
    287,629.01x = 63,631,916,009.89
  5. Step 5: Solve for x
    x = 63,631,916,009.89/287,629.01
  6. Step 6: Final answer
    x = 221,229.13

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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.