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Finding the Fourth Proportional to 321,648.60, 482,472.90 and 144,501.60

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Solution

The fourth proportional to 321,648.60, 482,472.90 and 144,501.60 is: 216,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,648.60 : 482,472.90 = 144,501.60 : x
  2. Step 2: Convert to fraction form
    321,648.60/482,472.90 = 144,501.60/x
  3. Step 3: Cross multiply
    321,648.60x = 482,472.90 × 144,501.60
  4. Step 4: Simplify right side
    321,648.60x = 69,718,106,006.64
  5. Step 5: Solve for x
    x = 69,718,106,006.64/321,648.60
  6. Step 6: Final answer
    x = 216,752.40

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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.