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Finding the Fourth Proportional to 516,173.59, 774,368.16 and 260,150.05

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Solution

The fourth proportional to 516,173.59, 774,368.16 and 260,150.05 is: 390,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,173.59 : 774,368.16 = 260,150.05 : x
  2. Step 2: Convert to fraction form
    516,173.59/774,368.16 = 260,150.05/x
  3. Step 3: Cross multiply
    516,173.59x = 774,368.16 × 260,150.05
  4. Step 4: Simplify right side
    516,173.59x = 201,451,915,542.41
  5. Step 5: Solve for x
    x = 201,451,915,542.41/516,173.59
  6. Step 6: Final answer
    x = 390,279.39

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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.