Home / 280,973.96-387,750.81-160,112.66

Finding the Fourth Proportional to 280,973.96, 387,750.81 and 160,112.66

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Solution

The fourth proportional to 280,973.96, 387,750.81 and 160,112.66 is: 220,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,973.96 : 387,750.81 = 160,112.66 : x
  2. Step 2: Convert to fraction form
    280,973.96/387,750.81 = 160,112.66/x
  3. Step 3: Cross multiply
    280,973.96x = 387,750.81 × 160,112.66
  4. Step 4: Simplify right side
    280,973.96x = 62,083,813,606.25
  5. Step 5: Solve for x
    x = 62,083,813,606.25/280,973.96
  6. Step 6: Final answer
    x = 220,959.31

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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.