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Finding the Fourth Proportional to 525,818.07, 788,860.16 and 146,738.76

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Solution

The fourth proportional to 525,818.07, 788,860.16 and 146,738.76 is: 220,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,818.07 : 788,860.16 = 146,738.76 : x
  2. Step 2: Convert to fraction form
    525,818.07/788,860.16 = 146,738.76/x
  3. Step 3: Cross multiply
    525,818.07x = 788,860.16 × 146,738.76
  4. Step 4: Simplify right side
    525,818.07x = 115,756,360,958.11
  5. Step 5: Solve for x
    x = 115,756,360,958.11/525,818.07
  6. Step 6: Final answer
    x = 220,145.27

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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.