Home / 289,730.76-399,827.18-162,406.35

Finding the Fourth Proportional to 289,730.76, 399,827.18 and 162,406.35

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Solution

The fourth proportional to 289,730.76, 399,827.18 and 162,406.35 is: 224,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,730.76 : 399,827.18 = 162,406.35 : x
  2. Step 2: Convert to fraction form
    289,730.76/399,827.18 = 162,406.35/x
  3. Step 3: Cross multiply
    289,730.76x = 399,827.18 × 162,406.35
  4. Step 4: Simplify right side
    289,730.76x = 64,934,472,934.59
  5. Step 5: Solve for x
    x = 64,934,472,934.59/289,730.76
  6. Step 6: Final answer
    x = 224,120.05

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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.