Home / 308,926.55-426,098.50-283,514.98

Finding the Fourth Proportional to 308,926.55, 426,098.50 and 283,514.98

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Solution

The fourth proportional to 308,926.55, 426,098.50 and 283,514.98 is: 391,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,926.55 : 426,098.50 = 283,514.98 : x
  2. Step 2: Convert to fraction form
    308,926.55/426,098.50 = 283,514.98/x
  3. Step 3: Cross multiply
    308,926.55x = 426,098.50 × 283,514.98
  4. Step 4: Simplify right side
    308,926.55x = 120,805,305,931.50
  5. Step 5: Solve for x
    x = 120,805,305,931.50/308,926.55
  6. Step 6: Final answer
    x = 391,048.63

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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.