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Finding the Fourth Proportional to 340,290.22, 510,509.13 and 103,626.70

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Solution

The fourth proportional to 340,290.22, 510,509.13 and 103,626.70 is: 155,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,290.22 : 510,509.13 = 103,626.70 : x
  2. Step 2: Convert to fraction form
    340,290.22/510,509.13 = 103,626.70/x
  3. Step 3: Cross multiply
    340,290.22x = 510,509.13 × 103,626.70
  4. Step 4: Simplify right side
    340,290.22x = 52,902,376,461.77
  5. Step 5: Solve for x
    x = 52,902,376,461.77/340,290.22
  6. Step 6: Final answer
    x = 155,462.52

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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.