Home / 387,261.23-580,050.63-187,161.98

Finding the Fourth Proportional to 387,261.23, 580,050.63 and 187,161.98

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Solution

The fourth proportional to 387,261.23, 580,050.63 and 187,161.98 is: 280,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,261.23 : 580,050.63 = 187,161.98 : x
  2. Step 2: Convert to fraction form
    387,261.23/580,050.63 = 187,161.98/x
  3. Step 3: Cross multiply
    387,261.23x = 580,050.63 × 187,161.98
  4. Step 4: Simplify right side
    387,261.23x = 108,563,421,510.79
  5. Step 5: Solve for x
    x = 108,563,421,510.79/387,261.23
  6. Step 6: Final answer
    x = 280,336.41

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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.