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Finding the Fourth Proportional to 503,505.68, 755,258.54 and 187,987.19

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Solution

The fourth proportional to 503,505.68, 755,258.54 and 187,987.19 is: 281,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,505.68 : 755,258.54 = 187,987.19 : x
  2. Step 2: Convert to fraction form
    503,505.68/755,258.54 = 187,987.19/x
  3. Step 3: Cross multiply
    503,505.68x = 755,258.54 × 187,987.19
  4. Step 4: Simplify right side
    503,505.68x = 141,978,931,606.31
  5. Step 5: Solve for x
    x = 141,978,931,606.31/503,505.68
  6. Step 6: Final answer
    x = 281,980.79

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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.