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Finding the Fourth Proportional to 525,529.50, 725,230.65 and 283,812.03

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Solution

The fourth proportional to 525,529.50, 725,230.65 and 283,812.03 is: 391,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,529.50 : 725,230.65 = 283,812.03 : x
  2. Step 2: Convert to fraction form
    525,529.50/725,230.65 = 283,812.03/x
  3. Step 3: Cross multiply
    525,529.50x = 725,230.65 × 283,812.03
  4. Step 4: Simplify right side
    525,529.50x = 205,829,182,994.72
  5. Step 5: Solve for x
    x = 205,829,182,994.72/525,529.50
  6. Step 6: Final answer
    x = 391,660.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.