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Finding the Fourth Proportional to 302,278.40, 453,766.80 and 162,310.40

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Solution

The fourth proportional to 302,278.40, 453,766.80 and 162,310.40 is: 243,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,278.40 : 453,766.80 = 162,310.40 : x
  2. Step 2: Convert to fraction form
    302,278.40/453,766.80 = 162,310.40/x
  3. Step 3: Cross multiply
    302,278.40x = 453,766.80 × 162,310.40
  4. Step 4: Simplify right side
    302,278.40x = 73,651,070,814.72
  5. Step 5: Solve for x
    x = 73,651,070,814.72/302,278.40
  6. Step 6: Final answer
    x = 243,653.11

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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.