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Finding the Fourth Proportional to 369,765.69, 510,276.56 and 208,619.30

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Solution

The fourth proportional to 369,765.69, 510,276.56 and 208,619.30 is: 287,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,765.69 : 510,276.56 = 208,619.30 : x
  2. Step 2: Convert to fraction form
    369,765.69/510,276.56 = 208,619.30/x
  3. Step 3: Cross multiply
    369,765.69x = 510,276.56 × 208,619.30
  4. Step 4: Simplify right side
    369,765.69x = 106,453,535,159.13
  5. Step 5: Solve for x
    x = 106,453,535,159.13/369,765.69
  6. Step 6: Final answer
    x = 287,894.57

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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.