Home / 372,821.45-514,461.99-209,465.16

Finding the Fourth Proportional to 372,821.45, 514,461.99 and 209,465.16

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Solution

The fourth proportional to 372,821.45, 514,461.99 and 209,465.16 is: 289,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,821.45 : 514,461.99 = 209,465.16 : x
  2. Step 2: Convert to fraction form
    372,821.45/514,461.99 = 209,465.16/x
  3. Step 3: Cross multiply
    372,821.45x = 514,461.99 × 209,465.16
  4. Step 4: Simplify right side
    372,821.45x = 107,761,863,049.27
  5. Step 5: Solve for x
    x = 107,761,863,049.27/372,821.45
  6. Step 6: Final answer
    x = 289,044.16

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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.