Home / 476,128.98-657,056.18-261,272.64

Finding the Fourth Proportional to 476,128.98, 657,056.18 and 261,272.64

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Solution

The fourth proportional to 476,128.98, 657,056.18 and 261,272.64 is: 360,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,128.98 : 657,056.18 = 261,272.64 : x
  2. Step 2: Convert to fraction form
    476,128.98/657,056.18 = 261,272.64/x
  3. Step 3: Cross multiply
    476,128.98x = 657,056.18 × 261,272.64
  4. Step 4: Simplify right side
    476,128.98x = 171,670,802,776.92
  5. Step 5: Solve for x
    x = 171,670,802,776.92/476,128.98
  6. Step 6: Final answer
    x = 360,555.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.