Home / 212,005.12-292,432.80-158,232.64

Finding the Fourth Proportional to 212,005.12, 292,432.80 and 158,232.64

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Solution

The fourth proportional to 212,005.12, 292,432.80 and 158,232.64 is: 218,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,005.12 : 292,432.80 = 158,232.64 : x
  2. Step 2: Convert to fraction form
    212,005.12/292,432.80 = 158,232.64/x
  3. Step 3: Cross multiply
    212,005.12x = 292,432.80 × 158,232.64
  4. Step 4: Simplify right side
    212,005.12x = 46,272,413,966.59
  5. Step 5: Solve for x
    x = 46,272,413,966.59/212,005.12
  6. Step 6: Final answer
    x = 218,260.83

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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.