Home / 385,835.70-532,440.90-213,746.61

Finding the Fourth Proportional to 385,835.70, 532,440.90 and 213,746.61

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Solution

The fourth proportional to 385,835.70, 532,440.90 and 213,746.61 is: 294,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,835.70 : 532,440.90 = 213,746.61 : x
  2. Step 2: Convert to fraction form
    385,835.70/532,440.90 = 213,746.61/x
  3. Step 3: Cross multiply
    385,835.70x = 532,440.90 × 213,746.61
  4. Step 4: Simplify right side
    385,835.70x = 113,807,437,400.35
  5. Step 5: Solve for x
    x = 113,807,437,400.35/385,835.70
  6. Step 6: Final answer
    x = 294,963.47

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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.