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Finding the Fourth Proportional to 374,959.78, 517,443.13 and 202,877.22

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Solution

The fourth proportional to 374,959.78, 517,443.13 and 202,877.22 is: 279,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,959.78 : 517,443.13 = 202,877.22 : x
  2. Step 2: Convert to fraction form
    374,959.78/517,443.13 = 202,877.22/x
  3. Step 3: Cross multiply
    374,959.78x = 517,443.13 × 202,877.22
  4. Step 4: Simplify right side
    374,959.78x = 104,977,423,722.50
  5. Step 5: Solve for x
    x = 104,977,423,722.50/374,959.78
  6. Step 6: Final answer
    x = 279,969.82

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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.