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Finding the Fourth Proportional to 442,328.88, 610,221.36 and 281,097.48

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Solution

The fourth proportional to 442,328.88, 610,221.36 and 281,097.48 is: 387,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,328.88 : 610,221.36 = 281,097.48 : x
  2. Step 2: Convert to fraction form
    442,328.88/610,221.36 = 281,097.48/x
  3. Step 3: Cross multiply
    442,328.88x = 610,221.36 × 281,097.48
  4. Step 4: Simplify right side
    442,328.88x = 171,531,686,538.17
  5. Step 5: Solve for x
    x = 171,531,686,538.17/442,328.88
  6. Step 6: Final answer
    x = 387,792.19

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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.