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Finding the Fourth Proportional to 220,047.84, 330,068.12 and 70,287.08

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Solution

The fourth proportional to 220,047.84, 330,068.12 and 70,287.08 is: 105,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,047.84 : 330,068.12 = 70,287.08 : x
  2. Step 2: Convert to fraction form
    220,047.84/330,068.12 = 70,287.08/x
  3. Step 3: Cross multiply
    220,047.84x = 330,068.12 × 70,287.08
  4. Step 4: Simplify right side
    220,047.84x = 23,199,522,354.11
  5. Step 5: Solve for x
    x = 23,199,522,354.11/220,047.84
  6. Step 6: Final answer
    x = 105,429.45

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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.