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Finding the Fourth Proportional to 216,009.60, 323,447.40 and 152,486.70

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Solution

The fourth proportional to 216,009.60, 323,447.40 and 152,486.70 is: 228,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,009.60 : 323,447.40 = 152,486.70 : x
  2. Step 2: Convert to fraction form
    216,009.60/323,447.40 = 152,486.70/x
  3. Step 3: Cross multiply
    216,009.60x = 323,447.40 × 152,486.70
  4. Step 4: Simplify right side
    216,009.60x = 49,321,426,649.58
  5. Step 5: Solve for x
    x = 49,321,426,649.58/216,009.60
  6. Step 6: Final answer
    x = 228,329.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.