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Finding the Fourth Proportional to 525,385.94, 788,099.67 and 146,339.81

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Solution

The fourth proportional to 525,385.94, 788,099.67 and 146,339.81 is: 219,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,385.94 : 788,099.67 = 146,339.81 : x
  2. Step 2: Convert to fraction form
    525,385.94/788,099.67 = 146,339.81/x
  3. Step 3: Cross multiply
    525,385.94x = 788,099.67 × 146,339.81
  4. Step 4: Simplify right side
    525,385.94x = 115,330,352,028.36
  5. Step 5: Solve for x
    x = 115,330,352,028.36/525,385.94
  6. Step 6: Final answer
    x = 219,515.49

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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.