Home / 385,019.47-531,322.14-212,934.29

Finding the Fourth Proportional to 385,019.47, 531,322.14 and 212,934.29

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Solution

The fourth proportional to 385,019.47, 531,322.14 and 212,934.29 is: 293,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,019.47 : 531,322.14 = 212,934.29 : x
  2. Step 2: Convert to fraction form
    385,019.47/531,322.14 = 212,934.29/x
  3. Step 3: Cross multiply
    385,019.47x = 531,322.14 × 212,934.29
  4. Step 4: Simplify right side
    385,019.47x = 113,136,704,219.07
  5. Step 5: Solve for x
    x = 113,136,704,219.07/385,019.47
  6. Step 6: Final answer
    x = 293,846.71

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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.