Home / 280,303.22-386,813.04-152,979.72

Finding the Fourth Proportional to 280,303.22, 386,813.04 and 152,979.72

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Solution

The fourth proportional to 280,303.22, 386,813.04 and 152,979.72 is: 211,109.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,303.22 : 386,813.04 = 152,979.72 : x
  2. Step 2: Convert to fraction form
    280,303.22/386,813.04 = 152,979.72/x
  3. Step 3: Cross multiply
    280,303.22x = 386,813.04 × 152,979.72
  4. Step 4: Simplify right side
    280,303.22x = 59,174,551,993.92
  5. Step 5: Solve for x
    x = 59,174,551,993.92/280,303.22
  6. Step 6: Final answer
    x = 211,109.07

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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.