Home / 279,290.54-385,422.63-151,966.91

Finding the Fourth Proportional to 279,290.54, 385,422.63 and 151,966.91

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Solution

The fourth proportional to 279,290.54, 385,422.63 and 151,966.91 is: 209,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,290.54 : 385,422.63 = 151,966.91 : x
  2. Step 2: Convert to fraction form
    279,290.54/385,422.63 = 151,966.91/x
  3. Step 3: Cross multiply
    279,290.54x = 385,422.63 × 151,966.91
  4. Step 4: Simplify right side
    279,290.54x = 58,571,486,125.17
  5. Step 5: Solve for x
    x = 58,571,486,125.17/279,290.54
  6. Step 6: Final answer
    x = 209,715.25

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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.