Home / 276,988.12-382,238.26-156,127.07

Finding the Fourth Proportional to 276,988.12, 382,238.26 and 156,127.07

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Solution

The fourth proportional to 276,988.12, 382,238.26 and 156,127.07 is: 215,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,988.12 : 382,238.26 = 156,127.07 : x
  2. Step 2: Convert to fraction form
    276,988.12/382,238.26 = 156,127.07/x
  3. Step 3: Cross multiply
    276,988.12x = 382,238.26 × 156,127.07
  4. Step 4: Simplify right side
    276,988.12x = 59,677,740,140.98
  5. Step 5: Solve for x
    x = 59,677,740,140.98/276,988.12
  6. Step 6: Final answer
    x = 215,452.35

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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.