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Finding the Fourth Proportional to 376,398.28, 519,430.44 and 223,467.22

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Solution

The fourth proportional to 376,398.28, 519,430.44 and 223,467.22 is: 308,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,398.28 : 519,430.44 = 223,467.22 : x
  2. Step 2: Convert to fraction form
    376,398.28/519,430.44 = 223,467.22/x
  3. Step 3: Cross multiply
    376,398.28x = 519,430.44 × 223,467.22
  4. Step 4: Simplify right side
    376,398.28x = 116,075,676,410.18
  5. Step 5: Solve for x
    x = 116,075,676,410.18/376,398.28
  6. Step 6: Final answer
    x = 308,385.25

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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.