Home / 280,332.16-386,858.25-153,007.74

Finding the Fourth Proportional to 280,332.16, 386,858.25 and 153,007.74

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Solution

The fourth proportional to 280,332.16, 386,858.25 and 153,007.74 is: 211,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,332.16 : 386,858.25 = 153,007.74 : x
  2. Step 2: Convert to fraction form
    280,332.16/386,858.25 = 153,007.74/x
  3. Step 3: Cross multiply
    280,332.16x = 386,858.25 × 153,007.74
  4. Step 4: Simplify right side
    280,332.16x = 59,192,306,532.86
  5. Step 5: Solve for x
    x = 59,192,306,532.86/280,332.16
  6. Step 6: Final answer
    x = 211,150.61

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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.