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Finding the Fourth Proportional to 369,775.45, 510,279.72 and 208,645.48

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Solution

The fourth proportional to 369,775.45, 510,279.72 and 208,645.48 is: 287,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,775.45 : 510,279.72 = 208,645.48 : x
  2. Step 2: Convert to fraction form
    369,775.45/510,279.72 = 208,645.48/x
  3. Step 3: Cross multiply
    369,775.45x = 510,279.72 × 208,645.48
  4. Step 4: Simplify right side
    369,775.45x = 106,467,557,113.67
  5. Step 5: Solve for x
    x = 106,467,557,113.67/369,775.45
  6. Step 6: Final answer
    x = 287,924.89

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1.5x scale

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.