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Finding the Fourth Proportional to 491,271.60, 736,907.40 and 255,075.60

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Solution

The fourth proportional to 491,271.60, 736,907.40 and 255,075.60 is: 382,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,271.60 : 736,907.40 = 255,075.60 : x
  2. Step 2: Convert to fraction form
    491,271.60/736,907.40 = 255,075.60/x
  3. Step 3: Cross multiply
    491,271.60x = 736,907.40 × 255,075.60
  4. Step 4: Simplify right side
    491,271.60x = 187,967,097,199.44
  5. Step 5: Solve for x
    x = 187,967,097,199.44/491,271.60
  6. Step 6: Final answer
    x = 382,613.40

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Similar ratio
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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.