Home / 282,920.49-390,433.04-153,861.73

Finding the Fourth Proportional to 282,920.49, 390,433.04 and 153,861.73

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Solution

The fourth proportional to 282,920.49, 390,433.04 and 153,861.73 is: 212,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,920.49 : 390,433.04 = 153,861.73 : x
  2. Step 2: Convert to fraction form
    282,920.49/390,433.04 = 153,861.73/x
  3. Step 3: Cross multiply
    282,920.49x = 390,433.04 × 153,861.73
  4. Step 4: Simplify right side
    282,920.49x = 60,072,702,983.56
  5. Step 5: Solve for x
    x = 60,072,702,983.56/282,920.49
  6. Step 6: Final answer
    x = 212,330.69

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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.