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Finding the Fourth Proportional to 280,973.54, 387,745.54 and 158,467.52

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Solution

The fourth proportional to 280,973.54, 387,745.54 and 158,467.52 is: 218,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,973.54 : 387,745.54 = 158,467.52 : x
  2. Step 2: Convert to fraction form
    280,973.54/387,745.54 = 158,467.52/x
  3. Step 3: Cross multiply
    280,973.54x = 387,745.54 × 158,467.52
  4. Step 4: Simplify right side
    280,973.54x = 61,445,074,114.86
  5. Step 5: Solve for x
    x = 61,445,074,114.86/280,973.54
  6. Step 6: Final answer
    x = 218,686.34

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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.