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Finding the Fourth Proportional to 423,526.64, 635,120.40 and 186,701

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Solution

The fourth proportional to 423,526.64, 635,120.40 and 186,701 is: 279,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,526.64 : 635,120.40 = 186,701 : x
  2. Step 2: Convert to fraction form
    423,526.64/635,120.40 = 186,701/x
  3. Step 3: Cross multiply
    423,526.64x = 635,120.40 × 186,701
  4. Step 4: Simplify right side
    423,526.64x = 118,577,613,800.40
  5. Step 5: Solve for x
    x = 118,577,613,800.40/423,526.64
  6. Step 6: Final answer
    x = 279,976.75

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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.