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Finding the Fourth Proportional to 440,412.50, 607,769.86 and 239,208.50

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Solution

The fourth proportional to 440,412.50, 607,769.86 and 239,208.50 is: 330,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,412.50 : 607,769.86 = 239,208.50 : x
  2. Step 2: Convert to fraction form
    440,412.50/607,769.86 = 239,208.50/x
  3. Step 3: Cross multiply
    440,412.50x = 607,769.86 × 239,208.50
  4. Step 4: Simplify right side
    440,412.50x = 145,383,716,555.81
  5. Step 5: Solve for x
    x = 145,383,716,555.81/440,412.50
  6. Step 6: Final answer
    x = 330,108.06

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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.