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Finding the Fourth Proportional to 507,290.60, 760,878.30 and 133,351.40

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Solution

The fourth proportional to 507,290.60, 760,878.30 and 133,351.40 is: 200,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,290.60 : 760,878.30 = 133,351.40 : x
  2. Step 2: Convert to fraction form
    507,290.60/760,878.30 = 133,351.40/x
  3. Step 3: Cross multiply
    507,290.60x = 760,878.30 × 133,351.40
  4. Step 4: Simplify right side
    507,290.60x = 101,464,186,534.62
  5. Step 5: Solve for x
    x = 101,464,186,534.62/507,290.60
  6. Step 6: Final answer
    x = 200,011.96

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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.