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Finding the Fourth Proportional to 288,215.60, 432,064.20 and 182,980.40

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Solution

The fourth proportional to 288,215.60, 432,064.20 and 182,980.40 is: 274,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,215.60 : 432,064.20 = 182,980.40 : x
  2. Step 2: Convert to fraction form
    288,215.60/432,064.20 = 182,980.40/x
  3. Step 3: Cross multiply
    288,215.60x = 432,064.20 × 182,980.40
  4. Step 4: Simplify right side
    288,215.60x = 79,059,280,141.68
  5. Step 5: Solve for x
    x = 79,059,280,141.68/288,215.60
  6. Step 6: Final answer
    x = 274,306.04

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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.