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Finding the Fourth Proportional to 507,655.80, 761,483.70 and 133,716.60

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Solution

The fourth proportional to 507,655.80, 761,483.70 and 133,716.60 is: 200,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,655.80 : 761,483.70 = 133,716.60 : x
  2. Step 2: Convert to fraction form
    507,655.80/761,483.70 = 133,716.60/x
  3. Step 3: Cross multiply
    507,655.80x = 761,483.70 × 133,716.60
  4. Step 4: Simplify right side
    507,655.80x = 101,823,011,319.42
  5. Step 5: Solve for x
    x = 101,823,011,319.42/507,655.80
  6. Step 6: Final answer
    x = 200,574.90

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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.