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Finding the Fourth Proportional to 510,342.08, 765,623.82 and 155,346.86

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Solution

The fourth proportional to 510,342.08, 765,623.82 and 155,346.86 is: 233,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,342.08 : 765,623.82 = 155,346.86 : x
  2. Step 2: Convert to fraction form
    510,342.08/765,623.82 = 155,346.86/x
  3. Step 3: Cross multiply
    510,342.08x = 765,623.82 × 155,346.86
  4. Step 4: Simplify right side
    510,342.08x = 118,937,256,378.21
  5. Step 5: Solve for x
    x = 118,937,256,378.21/510,342.08
  6. Step 6: Final answer
    x = 233,053.99

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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.