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Finding the Fourth Proportional to 288,866.07, 398,627.71 and 159,801.21

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Solution

The fourth proportional to 288,866.07, 398,627.71 and 159,801.21 is: 220,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,866.07 : 398,627.71 = 159,801.21 : x
  2. Step 2: Convert to fraction form
    288,866.07/398,627.71 = 159,801.21/x
  3. Step 3: Cross multiply
    288,866.07x = 398,627.71 × 159,801.21
  4. Step 4: Simplify right side
    288,866.07x = 63,701,190,397.53
  5. Step 5: Solve for x
    x = 63,701,190,397.53/288,866.07
  6. Step 6: Final answer
    x = 220,521.54

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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.