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Finding the Fourth Proportional to 415,370.40, 573,210.78 and 224,383.74

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Solution

The fourth proportional to 415,370.40, 573,210.78 and 224,383.74 is: 309,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,370.40 : 573,210.78 = 224,383.74 : x
  2. Step 2: Convert to fraction form
    415,370.40/573,210.78 = 224,383.74/x
  3. Step 3: Cross multiply
    415,370.40x = 573,210.78 × 224,383.74
  4. Step 4: Simplify right side
    415,370.40x = 128,619,178,624.72
  5. Step 5: Solve for x
    x = 128,619,178,624.72/415,370.40
  6. Step 6: Final answer
    x = 309,649.36

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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.