Home / 279,182.25-385,271.69-158,284.89

Finding the Fourth Proportional to 279,182.25, 385,271.69 and 158,284.89

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Solution

The fourth proportional to 279,182.25, 385,271.69 and 158,284.89 is: 218,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,182.25 : 385,271.69 = 158,284.89 : x
  2. Step 2: Convert to fraction form
    279,182.25/385,271.69 = 158,284.89/x
  3. Step 3: Cross multiply
    279,182.25x = 385,271.69 × 158,284.89
  4. Step 4: Simplify right side
    279,182.25x = 60,982,686,280.34
  5. Step 5: Solve for x
    x = 60,982,686,280.34/279,182.25
  6. Step 6: Final answer
    x = 218,433.25

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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.