Home / 385,062.13-531,339.54-212,956.74

Finding the Fourth Proportional to 385,062.13, 531,339.54 and 212,956.74

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Solution

The fourth proportional to 385,062.13, 531,339.54 and 212,956.74 is: 293,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,062.13 : 531,339.54 = 212,956.74 : x
  2. Step 2: Convert to fraction form
    385,062.13/531,339.54 = 212,956.74/x
  3. Step 3: Cross multiply
    385,062.13x = 531,339.54 × 212,956.74
  4. Step 4: Simplify right side
    385,062.13x = 113,152,336,271.50
  5. Step 5: Solve for x
    x = 113,152,336,271.50/385,062.13
  6. Step 6: Final answer
    x = 293,854.75

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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.