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Finding the Fourth Proportional to 374,893.32, 517,352.22 and 205,127.40

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Solution

The fourth proportional to 374,893.32, 517,352.22 and 205,127.40 is: 283,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,893.32 : 517,352.22 = 205,127.40 : x
  2. Step 2: Convert to fraction form
    374,893.32/517,352.22 = 205,127.40/x
  3. Step 3: Cross multiply
    374,893.32x = 517,352.22 × 205,127.40
  4. Step 4: Simplify right side
    374,893.32x = 106,123,115,772.83
  5. Step 5: Solve for x
    x = 106,123,115,772.83/374,893.32
  6. Step 6: Final answer
    x = 283,075.50

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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.