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Finding the Fourth Proportional to 489,075.60, 733,613.40 and 134,089.05

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Solution

The fourth proportional to 489,075.60, 733,613.40 and 134,089.05 is: 201,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,075.60 : 733,613.40 = 134,089.05 : x
  2. Step 2: Convert to fraction form
    489,075.60/733,613.40 = 134,089.05/x
  3. Step 3: Cross multiply
    489,075.60x = 733,613.40 × 134,089.05
  4. Step 4: Simplify right side
    489,075.60x = 98,369,523,873.27
  5. Step 5: Solve for x
    x = 98,369,523,873.27/489,075.60
  6. Step 6: Final answer
    x = 201,133.58

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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.