Home / 280,276.96-386,790.36-152,960.76

Finding the Fourth Proportional to 280,276.96, 386,790.36 and 152,960.76

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Solution

The fourth proportional to 280,276.96, 386,790.36 and 152,960.76 is: 211,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,276.96 : 386,790.36 = 152,960.76 : x
  2. Step 2: Convert to fraction form
    280,276.96/386,790.36 = 152,960.76/x
  3. Step 3: Cross multiply
    280,276.96x = 386,790.36 × 152,960.76
  4. Step 4: Simplify right side
    280,276.96x = 59,163,747,426.27
  5. Step 5: Solve for x
    x = 59,163,747,426.27/280,276.96
  6. Step 6: Final answer
    x = 211,090.30

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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.