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Finding the Fourth Proportional to 155,432.83, 214,497.31 and 88,364.83

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Solution

The fourth proportional to 155,432.83, 214,497.31 and 88,364.83 is: 121,943.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,432.83 : 214,497.31 = 88,364.83 : x
  2. Step 2: Convert to fraction form
    155,432.83/214,497.31 = 88,364.83/x
  3. Step 3: Cross multiply
    155,432.83x = 214,497.31 × 88,364.83
  4. Step 4: Simplify right side
    155,432.83x = 18,954,018,333.61
  5. Step 5: Solve for x
    x = 18,954,018,333.61/155,432.83
  6. Step 6: Final answer
    x = 121,943.47

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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.