Home / 385,016.68-531,307.86-212,923.48

Finding the Fourth Proportional to 385,016.68, 531,307.86 and 212,923.48

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Solution

The fourth proportional to 385,016.68, 531,307.86 and 212,923.48 is: 293,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,016.68 : 531,307.86 = 212,923.48 : x
  2. Step 2: Convert to fraction form
    385,016.68/531,307.86 = 212,923.48/x
  3. Step 3: Cross multiply
    385,016.68x = 531,307.86 × 212,923.48
  4. Step 4: Simplify right side
    385,016.68x = 113,127,918,502.55
  5. Step 5: Solve for x
    x = 113,127,918,502.55/385,016.68
  6. Step 6: Final answer
    x = 293,826.02

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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.