Home / 289,680.04-399,763.25-160,623.95

Finding the Fourth Proportional to 289,680.04, 399,763.25 and 160,623.95

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Solution

The fourth proportional to 289,680.04, 399,763.25 and 160,623.95 is: 221,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,680.04 : 399,763.25 = 160,623.95 : x
  2. Step 2: Convert to fraction form
    289,680.04/399,763.25 = 160,623.95/x
  3. Step 3: Cross multiply
    289,680.04x = 399,763.25 × 160,623.95
  4. Step 4: Simplify right side
    289,680.04x = 64,211,553,680.81
  5. Step 5: Solve for x
    x = 64,211,553,680.81/289,680.04
  6. Step 6: Final answer
    x = 221,663.72

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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.