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Finding the Fourth Proportional to 508,199.30, 761,282.56 and 305,683.55

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Solution

The fourth proportional to 508,199.30, 761,282.56 and 305,683.55 is: 457,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,199.30 : 761,282.56 = 305,683.55 : x
  2. Step 2: Convert to fraction form
    508,199.30/761,282.56 = 305,683.55/x
  3. Step 3: Cross multiply
    508,199.30x = 761,282.56 × 305,683.55
  4. Step 4: Simplify right side
    508,199.30x = 232,711,553,965.47
  5. Step 5: Solve for x
    x = 232,711,553,965.47/508,199.30
  6. Step 6: Final answer
    x = 457,913.96

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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.