Home / 282,634.40-390,057.20-161,813.60

Finding the Fourth Proportional to 282,634.40, 390,057.20 and 161,813.60

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Solution

The fourth proportional to 282,634.40, 390,057.20 and 161,813.60 is: 223,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,634.40 : 390,057.20 = 161,813.60 : x
  2. Step 2: Convert to fraction form
    282,634.40/390,057.20 = 161,813.60/x
  3. Step 3: Cross multiply
    282,634.40x = 390,057.20 × 161,813.60
  4. Step 4: Simplify right side
    282,634.40x = 63,116,559,737.92
  5. Step 5: Solve for x
    x = 63,116,559,737.92/282,634.40
  6. Step 6: Final answer
    x = 223,315.21

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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.