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Finding the Fourth Proportional to 262,461.60, 393,886.80 and 104,803.20

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Solution

The fourth proportional to 262,461.60, 393,886.80 and 104,803.20 is: 157,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,461.60 : 393,886.80 = 104,803.20 : x
  2. Step 2: Convert to fraction form
    262,461.60/393,886.80 = 104,803.20/x
  3. Step 3: Cross multiply
    262,461.60x = 393,886.80 × 104,803.20
  4. Step 4: Simplify right side
    262,461.60x = 41,280,597,077.76
  5. Step 5: Solve for x
    x = 41,280,597,077.76/262,461.60
  6. Step 6: Final answer
    x = 157,282.43

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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.