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Finding the Fourth Proportional to 286,280.30, 395,029.64 and 158,931.30

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Solution

The fourth proportional to 286,280.30, 395,029.64 and 158,931.30 is: 219,304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,280.30 : 395,029.64 = 158,931.30 : x
  2. Step 2: Convert to fraction form
    286,280.30/395,029.64 = 158,931.30/x
  3. Step 3: Cross multiply
    286,280.30x = 395,029.64 × 158,931.30
  4. Step 4: Simplify right side
    286,280.30x = 62,782,574,223.73
  5. Step 5: Solve for x
    x = 62,782,574,223.73/286,280.30
  6. Step 6: Final answer
    x = 219,304.56

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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.