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Finding the Fourth Proportional to 405,200.04, 607,807.88 and 124,717

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Solution

The fourth proportional to 405,200.04, 607,807.88 and 124,717 is: 187,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,200.04 : 607,807.88 = 124,717 : x
  2. Step 2: Convert to fraction form
    405,200.04/607,807.88 = 124,717/x
  3. Step 3: Cross multiply
    405,200.04x = 607,807.88 × 124,717
  4. Step 4: Simplify right side
    405,200.04x = 75,803,975,369.96
  5. Step 5: Solve for x
    x = 75,803,975,369.96/405,200.04
  6. Step 6: Final answer
    x = 187,077.91

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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.