Home / 268,639.91-370,715.64-146,128.22

Finding the Fourth Proportional to 268,639.91, 370,715.64 and 146,128.22

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Solution

The fourth proportional to 268,639.91, 370,715.64 and 146,128.22 is: 201,652.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,639.91 : 370,715.64 = 146,128.22 : x
  2. Step 2: Convert to fraction form
    268,639.91/370,715.64 = 146,128.22/x
  3. Step 3: Cross multiply
    268,639.91x = 370,715.64 × 146,128.22
  4. Step 4: Simplify right side
    268,639.91x = 54,172,016,599.36
  5. Step 5: Solve for x
    x = 54,172,016,599.36/268,639.91
  6. Step 6: Final answer
    x = 201,652.90

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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.