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Finding the Fourth Proportional to 288,051.60, 432,077.40 and 216,512.40

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Solution

The fourth proportional to 288,051.60, 432,077.40 and 216,512.40 is: 324,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,051.60 : 432,077.40 = 216,512.40 : x
  2. Step 2: Convert to fraction form
    288,051.60/432,077.40 = 216,512.40/x
  3. Step 3: Cross multiply
    288,051.60x = 432,077.40 × 216,512.40
  4. Step 4: Simplify right side
    288,051.60x = 93,550,114,859.76
  5. Step 5: Solve for x
    x = 93,550,114,859.76/288,051.60
  6. Step 6: Final answer
    x = 324,768.60

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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.