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Finding the Fourth Proportional to 281,655.60, 388,682.10 and 152,591.10

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Solution

The fourth proportional to 281,655.60, 388,682.10 and 152,591.10 is: 210,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,655.60 : 388,682.10 = 152,591.10 : x
  2. Step 2: Convert to fraction form
    281,655.60/388,682.10 = 152,591.10/x
  3. Step 3: Cross multiply
    281,655.60x = 388,682.10 × 152,591.10
  4. Step 4: Simplify right side
    281,655.60x = 59,309,429,189.31
  5. Step 5: Solve for x
    x = 59,309,429,189.31/281,655.60
  6. Step 6: Final answer
    x = 210,574.29

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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.