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Finding the Fourth Proportional to 375,840, 518,901.12 and 335,484.72

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Solution

The fourth proportional to 375,840, 518,901.12 and 335,484.72 is: 463,184.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,840 : 518,901.12 = 335,484.72 : x
  2. Step 2: Convert to fraction form
    375,840/518,901.12 = 335,484.72/x
  3. Step 3: Cross multiply
    375,840x = 518,901.12 × 335,484.72
  4. Step 4: Simplify right side
    375,840x = 174,083,396,950.89
  5. Step 5: Solve for x
    x = 174,083,396,950.89/375,840
  6. Step 6: Final answer
    x = 463,184.86

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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.