Home / 280,302.12-386,814.96-152,983.08

Finding the Fourth Proportional to 280,302.12, 386,814.96 and 152,983.08

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Solution

The fourth proportional to 280,302.12, 386,814.96 and 152,983.08 is: 211,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,302.12 : 386,814.96 = 152,983.08 : x
  2. Step 2: Convert to fraction form
    280,302.12/386,814.96 = 152,983.08/x
  3. Step 3: Cross multiply
    280,302.12x = 386,814.96 × 152,983.08
  4. Step 4: Simplify right side
    280,302.12x = 59,176,143,970.88
  5. Step 5: Solve for x
    x = 59,176,143,970.88/280,302.12
  6. Step 6: Final answer
    x = 211,115.58

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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.