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Finding the Fourth Proportional to 442,215.80, 610,260.10 and 251,239.88

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Solution

The fourth proportional to 442,215.80, 610,260.10 and 251,239.88 is: 346,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,215.80 : 610,260.10 = 251,239.88 : x
  2. Step 2: Convert to fraction form
    442,215.80/610,260.10 = 251,239.88/x
  3. Step 3: Cross multiply
    442,215.80x = 610,260.10 × 251,239.88
  4. Step 4: Simplify right side
    442,215.80x = 153,321,674,292.79
  5. Step 5: Solve for x
    x = 153,321,674,292.79/442,215.80
  6. Step 6: Final answer
    x = 346,712.34

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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.