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Finding the Fourth Proportional to 290,075.04, 435,285.09 and 156,952.62

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Solution

The fourth proportional to 290,075.04, 435,285.09 and 156,952.62 is: 235,522.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,075.04 : 435,285.09 = 156,952.62 : x
  2. Step 2: Convert to fraction form
    290,075.04/435,285.09 = 156,952.62/x
  3. Step 3: Cross multiply
    290,075.04x = 435,285.09 × 156,952.62
  4. Step 4: Simplify right side
    290,075.04x = 68,319,135,322.44
  5. Step 5: Solve for x
    x = 68,319,135,322.44/290,075.04
  6. Step 6: Final answer
    x = 235,522.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.