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Finding the Fourth Proportional to 560,156.50, 773,015.97 and 305,509.51

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Solution

The fourth proportional to 560,156.50, 773,015.97 and 305,509.51 is: 421,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,156.50 : 773,015.97 = 305,509.51 : x
  2. Step 2: Convert to fraction form
    560,156.50/773,015.97 = 305,509.51/x
  3. Step 3: Cross multiply
    560,156.50x = 773,015.97 × 305,509.51
  4. Step 4: Simplify right side
    560,156.50x = 236,163,730,216.88
  5. Step 5: Solve for x
    x = 236,163,730,216.88/560,156.50
  6. Step 6: Final answer
    x = 421,603.12

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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.