Home / 330,337.20-456,054.48-217,488

Finding the Fourth Proportional to 330,337.20, 456,054.48 and 217,488

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Solution

The fourth proportional to 330,337.20, 456,054.48 and 217,488 is: 300,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,337.20 : 456,054.48 = 217,488 : x
  2. Step 2: Convert to fraction form
    330,337.20/456,054.48 = 217,488/x
  3. Step 3: Cross multiply
    330,337.20x = 456,054.48 × 217,488
  4. Step 4: Simplify right side
    330,337.20x = 99,186,376,746.24
  5. Step 5: Solve for x
    x = 99,186,376,746.24/330,337.20
  6. Step 6: Final answer
    x = 300,257.97

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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.