Home / 282,926.84-390,446.44-155,605.78

Finding the Fourth Proportional to 282,926.84, 390,446.44 and 155,605.78

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Solution

The fourth proportional to 282,926.84, 390,446.44 and 155,605.78 is: 214,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,926.84 : 390,446.44 = 155,605.78 : x
  2. Step 2: Convert to fraction form
    282,926.84/390,446.44 = 155,605.78/x
  3. Step 3: Cross multiply
    282,926.84x = 390,446.44 × 155,605.78
  4. Step 4: Simplify right side
    282,926.84x = 60,755,722,844.42
  5. Step 5: Solve for x
    x = 60,755,722,844.42/282,926.84
  6. Step 6: Final answer
    x = 214,740.05

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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.