Home / 282,290.72-423,436.67-198,426.14

Finding the Fourth Proportional to 282,290.72, 423,436.67 and 198,426.14

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Solution

The fourth proportional to 282,290.72, 423,436.67 and 198,426.14 is: 297,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,290.72 : 423,436.67 = 198,426.14 : x
  2. Step 2: Convert to fraction form
    282,290.72/423,436.67 = 198,426.14/x
  3. Step 3: Cross multiply
    282,290.72x = 423,436.67 × 198,426.14
  4. Step 4: Simplify right side
    282,290.72x = 84,020,900,853.24
  5. Step 5: Solve for x
    x = 84,020,900,853.24/282,290.72
  6. Step 6: Final answer
    x = 297,639.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.