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Finding the Fourth Proportional to 453,907.50, 680,664.30 and 154,307.60

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Solution

The fourth proportional to 453,907.50, 680,664.30 and 154,307.60 is: 231,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,907.50 : 680,664.30 = 154,307.60 : x
  2. Step 2: Convert to fraction form
    453,907.50/680,664.30 = 154,307.60/x
  3. Step 3: Cross multiply
    453,907.50x = 680,664.30 × 154,307.60
  4. Step 4: Simplify right side
    453,907.50x = 105,031,674,538.68
  5. Step 5: Solve for x
    x = 105,031,674,538.68/453,907.50
  6. Step 6: Final answer
    x = 231,394.45

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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.