Home / 220,001.70-330,002.55-145,206.30

Finding the Fourth Proportional to 220,001.70, 330,002.55 and 145,206.30

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Solution

The fourth proportional to 220,001.70, 330,002.55 and 145,206.30 is: 217,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,001.70 : 330,002.55 = 145,206.30 : x
  2. Step 2: Convert to fraction form
    220,001.70/330,002.55 = 145,206.30/x
  3. Step 3: Cross multiply
    220,001.70x = 330,002.55 × 145,206.30
  4. Step 4: Simplify right side
    220,001.70x = 47,918,449,276.07
  5. Step 5: Solve for x
    x = 47,918,449,276.07/220,001.70
  6. Step 6: Final answer
    x = 217,809.45

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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.