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Finding the Fourth Proportional to 289,775.16, 399,898.08 and 162,452.88

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Solution

The fourth proportional to 289,775.16, 399,898.08 and 162,452.88 is: 224,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,775.16 : 399,898.08 = 162,452.88 : x
  2. Step 2: Convert to fraction form
    289,775.16/399,898.08 = 162,452.88/x
  3. Step 3: Cross multiply
    289,775.16x = 399,898.08 × 162,452.88
  4. Step 4: Simplify right side
    289,775.16x = 64,964,594,802.47
  5. Step 5: Solve for x
    x = 64,964,594,802.47/289,775.16
  6. Step 6: Final answer
    x = 224,189.66

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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.