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Finding the Fourth Proportional to 289,925.32, 400,113.48 and 162,590.80

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Solution

The fourth proportional to 289,925.32, 400,113.48 and 162,590.80 is: 224,384.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,925.32 : 400,113.48 = 162,590.80 : x
  2. Step 2: Convert to fraction form
    289,925.32/400,113.48 = 162,590.80/x
  3. Step 3: Cross multiply
    289,925.32x = 400,113.48 × 162,590.80
  4. Step 4: Simplify right side
    289,925.32x = 65,054,770,803.98
  5. Step 5: Solve for x
    x = 65,054,770,803.98/289,925.32
  6. Step 6: Final answer
    x = 224,384.58

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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.