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Finding the Fourth Proportional to 492,248.40, 738,477.09 and 155,386.41

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Solution

The fourth proportional to 492,248.40, 738,477.09 and 155,386.41 is: 233,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,248.40 : 738,477.09 = 155,386.41 : x
  2. Step 2: Convert to fraction form
    492,248.40/738,477.09 = 155,386.41/x
  3. Step 3: Cross multiply
    492,248.40x = 738,477.09 × 155,386.41
  4. Step 4: Simplify right side
    492,248.40x = 114,749,303,882.35
  5. Step 5: Solve for x
    x = 114,749,303,882.35/492,248.40
  6. Step 6: Final answer
    x = 233,112.60

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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.