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Finding the Fourth Proportional to 216,710.25, 299,060.15 and 141,258.75

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Solution

The fourth proportional to 216,710.25, 299,060.15 and 141,258.75 is: 194,937.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,710.25 : 299,060.15 = 141,258.75 : x
  2. Step 2: Convert to fraction form
    216,710.25/299,060.15 = 141,258.75/x
  3. Step 3: Cross multiply
    216,710.25x = 299,060.15 × 141,258.75
  4. Step 4: Simplify right side
    216,710.25x = 42,244,862,257.52
  5. Step 5: Solve for x
    x = 42,244,862,257.52/216,710.25
  6. Step 6: Final answer
    x = 194,937.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.