Home / 280,727.14-387,413-153,410.93

Finding the Fourth Proportional to 280,727.14, 387,413 and 153,410.93

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Solution

The fourth proportional to 280,727.14, 387,413 and 153,410.93 is: 211,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,727.14 : 387,413 = 153,410.93 : x
  2. Step 2: Convert to fraction form
    280,727.14/387,413 = 153,410.93/x
  3. Step 3: Cross multiply
    280,727.14x = 387,413 × 153,410.93
  4. Step 4: Simplify right side
    280,727.14x = 59,433,388,624.09
  5. Step 5: Solve for x
    x = 59,433,388,624.09/280,727.14
  6. Step 6: Final answer
    x = 211,712.30

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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.