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Finding the Fourth Proportional to 216,088.84, 298,119.36 and 135,375.76

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Solution

The fourth proportional to 216,088.84, 298,119.36 and 135,375.76 is: 186,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,088.84 : 298,119.36 = 135,375.76 : x
  2. Step 2: Convert to fraction form
    216,088.84/298,119.36 = 135,375.76/x
  3. Step 3: Cross multiply
    216,088.84x = 298,119.36 × 135,375.76
  4. Step 4: Simplify right side
    216,088.84x = 40,358,134,930.71
  5. Step 5: Solve for x
    x = 40,358,134,930.71/216,088.84
  6. Step 6: Final answer
    x = 186,766.40

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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.