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Finding the Fourth Proportional to 343,359.07, 514,866.27 and 163,390.84

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Solution

The fourth proportional to 343,359.07, 514,866.27 and 163,390.84 is: 245,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,359.07 : 514,866.27 = 163,390.84 : x
  2. Step 2: Convert to fraction form
    343,359.07/514,866.27 = 163,390.84/x
  3. Step 3: Cross multiply
    343,359.07x = 514,866.27 × 163,390.84
  4. Step 4: Simplify right side
    343,359.07x = 84,124,431,668.52
  5. Step 5: Solve for x
    x = 84,124,431,668.52/343,359.07
  6. Step 6: Final answer
    x = 245,004.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.