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Finding the Fourth Proportional to 302,319.60, 453,479.40 and 213,746.10

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Solution

The fourth proportional to 302,319.60, 453,479.40 and 213,746.10 is: 320,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,319.60 : 453,479.40 = 213,746.10 : x
  2. Step 2: Convert to fraction form
    302,319.60/453,479.40 = 213,746.10/x
  3. Step 3: Cross multiply
    302,319.60x = 453,479.40 × 213,746.10
  4. Step 4: Simplify right side
    302,319.60x = 96,929,453,180.34
  5. Step 5: Solve for x
    x = 96,929,453,180.34/302,319.60
  6. Step 6: Final answer
    x = 320,619.15

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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.