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Finding the Fourth Proportional to 375,159.40, 517,699.56 and 205,360.72

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Solution

The fourth proportional to 375,159.40, 517,699.56 and 205,360.72 is: 283,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,159.40 : 517,699.56 = 205,360.72 : x
  2. Step 2: Convert to fraction form
    375,159.40/517,699.56 = 205,360.72/x
  3. Step 3: Cross multiply
    375,159.40x = 517,699.56 × 205,360.72
  4. Step 4: Simplify right side
    375,159.40x = 106,315,154,385.28
  5. Step 5: Solve for x
    x = 106,315,154,385.28/375,159.40
  6. Step 6: Final answer
    x = 283,386.62

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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.