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Finding the Fourth Proportional to 289,931.44, 399,935.48 and 182,330.80

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Solution

The fourth proportional to 289,931.44, 399,935.48 and 182,330.80 is: 251,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,931.44 : 399,935.48 = 182,330.80 : x
  2. Step 2: Convert to fraction form
    289,931.44/399,935.48 = 182,330.80/x
  3. Step 3: Cross multiply
    289,931.44x = 399,935.48 × 182,330.80
  4. Step 4: Simplify right side
    289,931.44x = 72,920,556,016.78
  5. Step 5: Solve for x
    x = 72,920,556,016.78/289,931.44
  6. Step 6: Final answer
    x = 251,509.65

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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.