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Finding the Fourth Proportional to 510,473.64, 765,682.50 and 155,457.93

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Solution

The fourth proportional to 510,473.64, 765,682.50 and 155,457.93 is: 233,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,473.64 : 765,682.50 = 155,457.93 : x
  2. Step 2: Convert to fraction form
    510,473.64/765,682.50 = 155,457.93/x
  3. Step 3: Cross multiply
    510,473.64x = 765,682.50 × 155,457.93
  4. Step 4: Simplify right side
    510,473.64x = 119,031,416,487.23
  5. Step 5: Solve for x
    x = 119,031,416,487.23/510,473.64
  6. Step 6: Final answer
    x = 233,178.38

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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.