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Finding the Fourth Proportional to 424,003.42, 585,160.62 and 288,338.32

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Solution

The fourth proportional to 424,003.42, 585,160.62 and 288,338.32 is: 397,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,003.42 : 585,160.62 = 288,338.32 : x
  2. Step 2: Convert to fraction form
    424,003.42/585,160.62 = 288,338.32/x
  3. Step 3: Cross multiply
    424,003.42x = 585,160.62 × 288,338.32
  4. Step 4: Simplify right side
    424,003.42x = 168,724,230,100.96
  5. Step 5: Solve for x
    x = 168,724,230,100.96/424,003.42
  6. Step 6: Final answer
    x = 397,931.30

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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.