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Finding the Fourth Proportional to 302,006.40, 453,155.40 and 213,068.40

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Solution

The fourth proportional to 302,006.40, 453,155.40 and 213,068.40 is: 319,705.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,006.40 : 453,155.40 = 213,068.40 : x
  2. Step 2: Convert to fraction form
    302,006.40/453,155.40 = 213,068.40/x
  3. Step 3: Cross multiply
    302,006.40x = 453,155.40 × 213,068.40
  4. Step 4: Simplify right side
    302,006.40x = 96,553,096,029.36
  5. Step 5: Solve for x
    x = 96,553,096,029.36/302,006.40
  6. Step 6: Final answer
    x = 319,705.46

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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.