Home / 280,921.92-387,669.60-153,596.16

Finding the Fourth Proportional to 280,921.92, 387,669.60 and 153,596.16

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Solution

The fourth proportional to 280,921.92, 387,669.60 and 153,596.16 is: 211,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,921.92 : 387,669.60 = 153,596.16 : x
  2. Step 2: Convert to fraction form
    280,921.92/387,669.60 = 153,596.16/x
  3. Step 3: Cross multiply
    280,921.92x = 387,669.60 × 153,596.16
  4. Step 4: Simplify right side
    280,921.92x = 59,544,561,908.74
  5. Step 5: Solve for x
    x = 59,544,561,908.74/280,921.92
  6. Step 6: Final answer
    x = 211,961.25

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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.