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Finding the Fourth Proportional to 286,444.76, 395,279.60 and 165,574.53

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Solution

The fourth proportional to 286,444.76, 395,279.60 and 165,574.53 is: 228,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,444.76 : 395,279.60 = 165,574.53 : x
  2. Step 2: Convert to fraction form
    286,444.76/395,279.60 = 165,574.53/x
  3. Step 3: Cross multiply
    286,444.76x = 395,279.60 × 165,574.53
  4. Step 4: Simplify right side
    286,444.76x = 65,448,233,160.72
  5. Step 5: Solve for x
    x = 65,448,233,160.72/286,444.76
  6. Step 6: Final answer
    x = 228,484.66

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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.