Home / 302,456.30-453,684.45-212,254.70

Finding the Fourth Proportional to 302,456.30, 453,684.45 and 212,254.70

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Solution

The fourth proportional to 302,456.30, 453,684.45 and 212,254.70 is: 318,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.30 : 453,684.45 = 212,254.70 : x
  2. Step 2: Convert to fraction form
    302,456.30/453,684.45 = 212,254.70/x
  3. Step 3: Cross multiply
    302,456.30x = 453,684.45 × 212,254.70
  4. Step 4: Simplify right side
    302,456.30x = 96,296,656,829.42
  5. Step 5: Solve for x
    x = 96,296,656,829.42/302,456.30
  6. Step 6: Final answer
    x = 318,382.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.