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Finding the Fourth Proportional to 321,291.04, 482,101.80 and 153,002.20

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Solution

The fourth proportional to 321,291.04, 482,101.80 and 153,002.20 is: 229,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,291.04 : 482,101.80 = 153,002.20 : x
  2. Step 2: Convert to fraction form
    321,291.04/482,101.80 = 153,002.20/x
  3. Step 3: Cross multiply
    321,291.04x = 482,101.80 × 153,002.20
  4. Step 4: Simplify right side
    321,291.04x = 73,762,636,023.96
  5. Step 5: Solve for x
    x = 73,762,636,023.96/321,291.04
  6. Step 6: Final answer
    x = 229,581.99

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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.