Home / 389,276.48-537,201.62-219,510.61

Finding the Fourth Proportional to 389,276.48, 537,201.62 and 219,510.61

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Solution

The fourth proportional to 389,276.48, 537,201.62 and 219,510.61 is: 302,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,276.48 : 537,201.62 = 219,510.61 : x
  2. Step 2: Convert to fraction form
    389,276.48/537,201.62 = 219,510.61/x
  3. Step 3: Cross multiply
    389,276.48x = 537,201.62 × 219,510.61
  4. Step 4: Simplify right side
    389,276.48x = 117,921,453,681.80
  5. Step 5: Solve for x
    x = 117,921,453,681.80/389,276.48
  6. Step 6: Final answer
    x = 302,924.68

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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.