Home / 369,634.20-510,087.42-218,779.80

Finding the Fourth Proportional to 369,634.20, 510,087.42 and 218,779.80

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Solution

The fourth proportional to 369,634.20, 510,087.42 and 218,779.80 is: 301,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,634.20 : 510,087.42 = 218,779.80 : x
  2. Step 2: Convert to fraction form
    369,634.20/510,087.42 = 218,779.80/x
  3. Step 3: Cross multiply
    369,634.20x = 510,087.42 × 218,779.80
  4. Step 4: Simplify right side
    369,634.20x = 111,596,823,730.12
  5. Step 5: Solve for x
    x = 111,596,823,730.12/369,634.20
  6. Step 6: Final answer
    x = 301,911.52

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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.