Home / 345,384.34-515,648.01-263,904.93

Finding the Fourth Proportional to 345,384.34, 515,648.01 and 263,904.93

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Solution

The fourth proportional to 345,384.34, 515,648.01 and 263,904.93 is: 394,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,384.34 : 515,648.01 = 263,904.93 : x
  2. Step 2: Convert to fraction form
    345,384.34/515,648.01 = 263,904.93/x
  3. Step 3: Cross multiply
    345,384.34x = 515,648.01 × 263,904.93
  4. Step 4: Simplify right side
    345,384.34x = 136,082,051,983.69
  5. Step 5: Solve for x
    x = 136,082,051,983.69/345,384.34
  6. Step 6: Final answer
    x = 394,001.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.