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Finding the Fourth Proportional to 384,075.59, 529,945.18 and 220,700.54

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Solution

The fourth proportional to 384,075.59, 529,945.18 and 220,700.54 is: 304,521.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,075.59 : 529,945.18 = 220,700.54 : x
  2. Step 2: Convert to fraction form
    384,075.59/529,945.18 = 220,700.54/x
  3. Step 3: Cross multiply
    384,075.59x = 529,945.18 × 220,700.54
  4. Step 4: Simplify right side
    384,075.59x = 116,959,183,643.17
  5. Step 5: Solve for x
    x = 116,959,183,643.17/384,075.59
  6. Step 6: Final answer
    x = 304,521.26

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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.