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Finding the Fourth Proportional to 476,168.68, 657,120.83 and 261,328.74

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Solution

The fourth proportional to 476,168.68, 657,120.83 and 261,328.74 is: 360,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,168.68 : 657,120.83 = 261,328.74 : x
  2. Step 2: Convert to fraction form
    476,168.68/657,120.83 = 261,328.74/x
  3. Step 3: Cross multiply
    476,168.68x = 657,120.83 × 261,328.74
  4. Step 4: Simplify right side
    476,168.68x = 171,724,558,531.65
  5. Step 5: Solve for x
    x = 171,724,558,531.65/476,168.68
  6. Step 6: Final answer
    x = 360,638.08

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1.5x scale

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.