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Finding the Fourth Proportional to 340,157.70, 509,622.15 and 300,836.10

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Solution

The fourth proportional to 340,157.70, 509,622.15 and 300,836.10 is: 450,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,157.70 : 509,622.15 = 300,836.10 : x
  2. Step 2: Convert to fraction form
    340,157.70/509,622.15 = 300,836.10/x
  3. Step 3: Cross multiply
    340,157.70x = 509,622.15 × 300,836.10
  4. Step 4: Simplify right side
    340,157.70x = 153,312,740,079.62
  5. Step 5: Solve for x
    x = 153,312,740,079.62/340,157.70
  6. Step 6: Final answer
    x = 450,710.77

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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.