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Finding the Fourth Proportional to 302,427.80, 453,641.70 and 169,717.40

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Solution

The fourth proportional to 302,427.80, 453,641.70 and 169,717.40 is: 254,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,427.80 : 453,641.70 = 169,717.40 : x
  2. Step 2: Convert to fraction form
    302,427.80/453,641.70 = 169,717.40/x
  3. Step 3: Cross multiply
    302,427.80x = 453,641.70 × 169,717.40
  4. Step 4: Simplify right side
    302,427.80x = 76,990,889,855.58
  5. Step 5: Solve for x
    x = 76,990,889,855.58/302,427.80
  6. Step 6: Final answer
    x = 254,576.10

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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.