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Finding the Fourth Proportional to 442,498.70, 610,646.90 and 251,548.89

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Solution

The fourth proportional to 442,498.70, 610,646.90 and 251,548.89 is: 347,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,498.70 : 610,646.90 = 251,548.89 : x
  2. Step 2: Convert to fraction form
    442,498.70/610,646.90 = 251,548.89/x
  3. Step 3: Cross multiply
    442,498.70x = 610,646.90 × 251,548.89
  4. Step 4: Simplify right side
    442,498.70x = 153,607,548,619.20
  5. Step 5: Solve for x
    x = 153,607,548,619.20/442,498.70
  6. Step 6: Final answer
    x = 347,136.73

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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.