Home / 343,946.16-515,192.40-217,521.36

Finding the Fourth Proportional to 343,946.16, 515,192.40 and 217,521.36

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Solution

The fourth proportional to 343,946.16, 515,192.40 and 217,521.36 is: 325,822.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,946.16 : 515,192.40 = 217,521.36 : x
  2. Step 2: Convert to fraction form
    343,946.16/515,192.40 = 217,521.36/x
  3. Step 3: Cross multiply
    343,946.16x = 515,192.40 × 217,521.36
  4. Step 4: Simplify right side
    343,946.16x = 112,065,351,509.66
  5. Step 5: Solve for x
    x = 112,065,351,509.66/343,946.16
  6. Step 6: Final answer
    x = 325,822.37

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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.