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Finding the Fourth Proportional to 557,398.20, 836,048.70 and 183,421.20

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Solution

The fourth proportional to 557,398.20, 836,048.70 and 183,421.20 is: 275,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,398.20 : 836,048.70 = 183,421.20 : x
  2. Step 2: Convert to fraction form
    557,398.20/836,048.70 = 183,421.20/x
  3. Step 3: Cross multiply
    557,398.20x = 836,048.70 × 183,421.20
  4. Step 4: Simplify right side
    557,398.20x = 153,349,055,812.44
  5. Step 5: Solve for x
    x = 153,349,055,812.44/557,398.20
  6. Step 6: Final answer
    x = 275,115.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.