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Finding the Fourth Proportional to 369,037.90, 553,556.85 and 279,808.30

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Solution

The fourth proportional to 369,037.90, 553,556.85 and 279,808.30 is: 419,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,037.90 : 553,556.85 = 279,808.30 : x
  2. Step 2: Convert to fraction form
    369,037.90/553,556.85 = 279,808.30/x
  3. Step 3: Cross multiply
    369,037.90x = 553,556.85 × 279,808.30
  4. Step 4: Simplify right side
    369,037.90x = 154,889,801,151.86
  5. Step 5: Solve for x
    x = 154,889,801,151.86/369,037.90
  6. Step 6: Final answer
    x = 419,712.45

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1.5x scale

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.