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Finding the Fourth Proportional to 187,322.40, 280,400.40 and 181,490.40

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Solution

The fourth proportional to 187,322.40, 280,400.40 and 181,490.40 is: 271,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,322.40 : 280,400.40 = 181,490.40 : x
  2. Step 2: Convert to fraction form
    187,322.40/280,400.40 = 181,490.40/x
  3. Step 3: Cross multiply
    187,322.40x = 280,400.40 × 181,490.40
  4. Step 4: Simplify right side
    187,322.40x = 50,889,980,756.16
  5. Step 5: Solve for x
    x = 50,889,980,756.16/187,322.40
  6. Step 6: Final answer
    x = 271,670.56

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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.