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Finding the Fourth Proportional to 300,526.72, 450,804.66 and 247,840

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Solution

The fourth proportional to 300,526.72, 450,804.66 and 247,840 is: 371,772.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,526.72 : 450,804.66 = 247,840 : x
  2. Step 2: Convert to fraction form
    300,526.72/450,804.66 = 247,840/x
  3. Step 3: Cross multiply
    300,526.72x = 450,804.66 × 247,840
  4. Step 4: Simplify right side
    300,526.72x = 111,727,426,934.40
  5. Step 5: Solve for x
    x = 111,727,426,934.40/300,526.72
  6. Step 6: Final answer
    x = 371,772.02

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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.