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Finding the Fourth Proportional to 476,158.60, 657,106.93 and 261,318.66

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Solution

The fourth proportional to 476,158.60, 657,106.93 and 261,318.66 is: 360,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,158.60 : 657,106.93 = 261,318.66 : x
  2. Step 2: Convert to fraction form
    476,158.60/657,106.93 = 261,318.66/x
  3. Step 3: Cross multiply
    476,158.60x = 657,106.93 × 261,318.66
  4. Step 4: Simplify right side
    476,158.60x = 171,714,300,286.81
  5. Step 5: Solve for x
    x = 171,714,300,286.81/476,158.60
  6. Step 6: Final answer
    x = 360,624.17

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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.