Home / 280,666.13-387,327.45-153,349.92

Finding the Fourth Proportional to 280,666.13, 387,327.45 and 153,349.92

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Solution

The fourth proportional to 280,666.13, 387,327.45 and 153,349.92 is: 211,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,666.13 : 387,327.45 = 153,349.92 : x
  2. Step 2: Convert to fraction form
    280,666.13/387,327.45 = 153,349.92/x
  3. Step 3: Cross multiply
    280,666.13x = 387,327.45 × 153,349.92
  4. Step 4: Simplify right side
    280,666.13x = 59,396,634,046.37
  5. Step 5: Solve for x
    x = 59,396,634,046.37/280,666.13
  6. Step 6: Final answer
    x = 211,627.37

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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.