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Finding the Fourth Proportional to 373,595.50, 515,561.79 and 239,459.50

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Solution

The fourth proportional to 373,595.50, 515,561.79 and 239,459.50 is: 330,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,595.50 : 515,561.79 = 239,459.50 : x
  2. Step 2: Convert to fraction form
    373,595.50/515,561.79 = 239,459.50/x
  3. Step 3: Cross multiply
    373,595.50x = 515,561.79 × 239,459.50
  4. Step 4: Simplify right side
    373,595.50x = 123,456,168,452.51
  5. Step 5: Solve for x
    x = 123,456,168,452.51/373,595.50
  6. Step 6: Final answer
    x = 330,454.11

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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.