Home / 389,823.30-537,864.30-220,024.62

Finding the Fourth Proportional to 389,823.30, 537,864.30 and 220,024.62

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Solution

The fourth proportional to 389,823.30, 537,864.30 and 220,024.62 is: 303,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,823.30 : 537,864.30 = 220,024.62 : x
  2. Step 2: Convert to fraction form
    389,823.30/537,864.30 = 220,024.62/x
  3. Step 3: Cross multiply
    389,823.30x = 537,864.30 × 220,024.62
  4. Step 4: Simplify right side
    389,823.30x = 118,343,388,219.07
  5. Step 5: Solve for x
    x = 118,343,388,219.07/389,823.30
  6. Step 6: Final answer
    x = 303,582.13

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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.