Home / 216,072.84-298,097.28-135,359.76

Finding the Fourth Proportional to 216,072.84, 298,097.28 and 135,359.76

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Solution

The fourth proportional to 216,072.84, 298,097.28 and 135,359.76 is: 186,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,072.84 : 298,097.28 = 135,359.76 : x
  2. Step 2: Convert to fraction form
    216,072.84/298,097.28 = 135,359.76/x
  3. Step 3: Cross multiply
    216,072.84x = 298,097.28 × 135,359.76
  4. Step 4: Simplify right side
    216,072.84x = 40,350,376,277.45
  5. Step 5: Solve for x
    x = 40,350,376,277.45/216,072.84
  6. Step 6: Final answer
    x = 186,744.32

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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.