Home / 209,424.48-288,847.40-145,001.54

Finding the Fourth Proportional to 209,424.48, 288,847.40 and 145,001.54

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Solution

The fourth proportional to 209,424.48, 288,847.40 and 145,001.54 is: 199,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,424.48 : 288,847.40 = 145,001.54 : x
  2. Step 2: Convert to fraction form
    209,424.48/288,847.40 = 145,001.54/x
  3. Step 3: Cross multiply
    209,424.48x = 288,847.40 × 145,001.54
  4. Step 4: Simplify right side
    209,424.48x = 41,883,315,655.75
  5. Step 5: Solve for x
    x = 41,883,315,655.75/209,424.48
  6. Step 6: Final answer
    x = 199,992.45

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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.