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Finding the Fourth Proportional to 243,369.48, 365,075.88 and 85,599.36

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Solution

The fourth proportional to 243,369.48, 365,075.88 and 85,599.36 is: 128,406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,369.48 : 365,075.88 = 85,599.36 : x
  2. Step 2: Convert to fraction form
    243,369.48/365,075.88 = 85,599.36/x
  3. Step 3: Cross multiply
    243,369.48x = 365,075.88 × 85,599.36
  4. Step 4: Simplify right side
    243,369.48x = 31,250,261,679.44
  5. Step 5: Solve for x
    x = 31,250,261,679.44/243,369.48
  6. Step 6: Final answer
    x = 128,406.66

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1.5x scale

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.