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Finding the Fourth Proportional to 220,180.84, 303,752.10 and 130,705

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Solution

The fourth proportional to 220,180.84, 303,752.10 and 130,705 is: 180,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,180.84 : 303,752.10 = 130,705 : x
  2. Step 2: Convert to fraction form
    220,180.84/303,752.10 = 130,705/x
  3. Step 3: Cross multiply
    220,180.84x = 303,752.10 × 130,705
  4. Step 4: Simplify right side
    220,180.84x = 39,701,918,230.50
  5. Step 5: Solve for x
    x = 39,701,918,230.50/220,180.84
  6. Step 6: Final answer
    x = 180,315.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.