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Finding the Fourth Proportional to 302,853.60, 417,920.72 and 173,764.71

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Solution

The fourth proportional to 302,853.60, 417,920.72 and 173,764.71 is: 239,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,853.60 : 417,920.72 = 173,764.71 : x
  2. Step 2: Convert to fraction form
    302,853.60/417,920.72 = 173,764.71/x
  3. Step 3: Cross multiply
    302,853.60x = 417,920.72 × 173,764.71
  4. Step 4: Simplify right side
    302,853.60x = 72,619,871,844.97
  5. Step 5: Solve for x
    x = 72,619,871,844.97/302,853.60
  6. Step 6: Final answer
    x = 239,785.40

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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.