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Finding the Fourth Proportional to 302,220.60, 453,330.90 and 213,647.10

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Solution

The fourth proportional to 302,220.60, 453,330.90 and 213,647.10 is: 320,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,220.60 : 453,330.90 = 213,647.10 : x
  2. Step 2: Convert to fraction form
    302,220.60/453,330.90 = 213,647.10/x
  3. Step 3: Cross multiply
    302,220.60x = 453,330.90 × 213,647.10
  4. Step 4: Simplify right side
    302,220.60x = 96,852,832,125.39
  5. Step 5: Solve for x
    x = 96,852,832,125.39/302,220.60
  6. Step 6: Final answer
    x = 320,470.65

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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.