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Finding the Fourth Proportional to 286,653.07, 429,988.62 and 73,422.31

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Solution

The fourth proportional to 286,653.07, 429,988.62 and 73,422.31 is: 110,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,653.07 : 429,988.62 = 73,422.31 : x
  2. Step 2: Convert to fraction form
    286,653.07/429,988.62 = 73,422.31/x
  3. Step 3: Cross multiply
    286,653.07x = 429,988.62 × 73,422.31
  4. Step 4: Simplify right side
    286,653.07x = 31,570,757,754.11
  5. Step 5: Solve for x
    x = 31,570,757,754.11/286,653.07
  6. Step 6: Final answer
    x = 110,135.77

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1.5x scale

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.