Home / 279,348.07-385,509.03-158,494.45

Finding the Fourth Proportional to 279,348.07, 385,509.03 and 158,494.45

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Solution

The fourth proportional to 279,348.07, 385,509.03 and 158,494.45 is: 218,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,348.07 : 385,509.03 = 158,494.45 : x
  2. Step 2: Convert to fraction form
    279,348.07/385,509.03 = 158,494.45/x
  3. Step 3: Cross multiply
    279,348.07x = 385,509.03 × 158,494.45
  4. Step 4: Simplify right side
    279,348.07x = 61,101,041,679.88
  5. Step 5: Solve for x
    x = 61,101,041,679.88/279,348.07
  6. Step 6: Final answer
    x = 218,727.27

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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.