Home / 374,271.80-561,630.04-137,780.56

Finding the Fourth Proportional to 374,271.80, 561,630.04 and 137,780.56

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Solution

The fourth proportional to 374,271.80, 561,630.04 and 137,780.56 is: 206,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,271.80 : 561,630.04 = 137,780.56 : x
  2. Step 2: Convert to fraction form
    374,271.80/561,630.04 = 137,780.56/x
  3. Step 3: Cross multiply
    374,271.80x = 561,630.04 × 137,780.56
  4. Step 4: Simplify right side
    374,271.80x = 77,381,701,424.02
  5. Step 5: Solve for x
    x = 77,381,701,424.02/374,271.80
  6. Step 6: Final answer
    x = 206,752.69

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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.