Home / 385,538.01-531,979.19-242,196.57

Finding the Fourth Proportional to 385,538.01, 531,979.19 and 242,196.57

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Solution

The fourth proportional to 385,538.01, 531,979.19 and 242,196.57 is: 334,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,538.01 : 531,979.19 = 242,196.57 : x
  2. Step 2: Convert to fraction form
    385,538.01/531,979.19 = 242,196.57/x
  3. Step 3: Cross multiply
    385,538.01x = 531,979.19 × 242,196.57
  4. Step 4: Simplify right side
    385,538.01x = 128,843,533,918.40
  5. Step 5: Solve for x
    x = 128,843,533,918.40/385,538.01
  6. Step 6: Final answer
    x = 334,191.52

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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.