Home / 385,061.13-531,338.16-212,955.74

Finding the Fourth Proportional to 385,061.13, 531,338.16 and 212,955.74

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Solution

The fourth proportional to 385,061.13, 531,338.16 and 212,955.74 is: 293,853.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,061.13 : 531,338.16 = 212,955.74 : x
  2. Step 2: Convert to fraction form
    385,061.13/531,338.16 = 212,955.74/x
  3. Step 3: Cross multiply
    385,061.13x = 531,338.16 × 212,955.74
  4. Step 4: Simplify right side
    385,061.13x = 113,151,511,053.04
  5. Step 5: Solve for x
    x = 113,151,511,053.04/385,061.13
  6. Step 6: Final answer
    x = 293,853.37

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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.