Home / 285,810.25-428,341.63-117,133.08

Finding the Fourth Proportional to 285,810.25, 428,341.63 and 117,133.08

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Solution

The fourth proportional to 285,810.25, 428,341.63 and 117,133.08 is: 175,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,810.25 : 428,341.63 = 117,133.08 : x
  2. Step 2: Convert to fraction form
    285,810.25/428,341.63 = 117,133.08/x
  3. Step 3: Cross multiply
    285,810.25x = 428,341.63 × 117,133.08
  4. Step 4: Simplify right side
    285,810.25x = 50,172,974,414.12
  5. Step 5: Solve for x
    x = 50,172,974,414.12/285,810.25
  6. Step 6: Final answer
    x = 175,546.45

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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.