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Finding the Fourth Proportional to 510,343.88, 765,626.45 and 155,348.62

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Solution

The fourth proportional to 510,343.88, 765,626.45 and 155,348.62 is: 233,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,343.88 : 765,626.45 = 155,348.62 : x
  2. Step 2: Convert to fraction form
    510,343.88/765,626.45 = 155,348.62/x
  3. Step 3: Cross multiply
    510,343.88x = 765,626.45 × 155,348.62
  4. Step 4: Simplify right side
    510,343.88x = 118,939,009,752.19
  5. Step 5: Solve for x
    x = 118,939,009,752.19/510,343.88
  6. Step 6: Final answer
    x = 233,056.60

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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.