Home / 385,816.15-532,426.18-213,745.31

Finding the Fourth Proportional to 385,816.15, 532,426.18 and 213,745.31

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Solution

The fourth proportional to 385,816.15, 532,426.18 and 213,745.31 is: 294,968.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,816.15 : 532,426.18 = 213,745.31 : x
  2. Step 2: Convert to fraction form
    385,816.15/532,426.18 = 213,745.31/x
  3. Step 3: Cross multiply
    385,816.15x = 532,426.18 × 213,745.31
  4. Step 4: Simplify right side
    385,816.15x = 113,803,595,697.91
  5. Step 5: Solve for x
    x = 113,803,595,697.91/385,816.15
  6. Step 6: Final answer
    x = 294,968.46

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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.