Home / 280,099.36-386,569.79-159,258.75

Finding the Fourth Proportional to 280,099.36, 386,569.79 and 159,258.75

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Solution

The fourth proportional to 280,099.36, 386,569.79 and 159,258.75 is: 219,795.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,099.36 : 386,569.79 = 159,258.75 : x
  2. Step 2: Convert to fraction form
    280,099.36/386,569.79 = 159,258.75/x
  3. Step 3: Cross multiply
    280,099.36x = 386,569.79 × 159,258.75
  4. Step 4: Simplify right side
    280,099.36x = 61,564,621,941.31
  5. Step 5: Solve for x
    x = 61,564,621,941.31/280,099.36
  6. Step 6: Final answer
    x = 219,795.66

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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.