Home / 280,172.18-386,636.75-152,846.87

Finding the Fourth Proportional to 280,172.18, 386,636.75 and 152,846.87

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Solution

The fourth proportional to 280,172.18, 386,636.75 and 152,846.87 is: 210,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,172.18 : 386,636.75 = 152,846.87 : x
  2. Step 2: Convert to fraction form
    280,172.18/386,636.75 = 152,846.87/x
  3. Step 3: Cross multiply
    280,172.18x = 386,636.75 × 152,846.87
  4. Step 4: Simplify right side
    280,172.18x = 59,096,214,940.23
  5. Step 5: Solve for x
    x = 59,096,214,940.23/280,172.18
  6. Step 6: Final answer
    x = 210,928.20

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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.