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Finding the Fourth Proportional to 243,030.28, 364,556.46 and 74,538.28

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Solution

The fourth proportional to 243,030.28, 364,556.46 and 74,538.28 is: 111,810.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,030.28 : 364,556.46 = 74,538.28 : x
  2. Step 2: Convert to fraction form
    243,030.28/364,556.46 = 74,538.28/x
  3. Step 3: Cross multiply
    243,030.28x = 364,556.46 × 74,538.28
  4. Step 4: Simplify right side
    243,030.28x = 27,173,411,491.29
  5. Step 5: Solve for x
    x = 27,173,411,491.29/243,030.28
  6. Step 6: Final answer
    x = 111,810.81

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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.