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Finding the Fourth Proportional to 379,777.60, 524,109.18 and 210,011.50

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Solution

The fourth proportional to 379,777.60, 524,109.18 and 210,011.50 is: 289,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,777.60 : 524,109.18 = 210,011.50 : x
  2. Step 2: Convert to fraction form
    379,777.60/524,109.18 = 210,011.50/x
  3. Step 3: Cross multiply
    379,777.60x = 524,109.18 × 210,011.50
  4. Step 4: Simplify right side
    379,777.60x = 110,068,955,055.57
  5. Step 5: Solve for x
    x = 110,068,955,055.57/379,777.60
  6. Step 6: Final answer
    x = 289,824.77

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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.