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Finding the Fourth Proportional to 442,452.81, 610,687.29 and 281,276.72

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Solution

The fourth proportional to 442,452.81, 610,687.29 and 281,276.72 is: 388,226.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,452.81 : 610,687.29 = 281,276.72 : x
  2. Step 2: Convert to fraction form
    442,452.81/610,687.29 = 281,276.72/x
  3. Step 3: Cross multiply
    442,452.81x = 610,687.29 × 281,276.72
  4. Step 4: Simplify right side
    442,452.81x = 171,772,118,580.08
  5. Step 5: Solve for x
    x = 171,772,118,580.08/442,452.81
  6. Step 6: Final answer
    x = 388,226.98

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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.