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Finding the Fourth Proportional to 216,987.58, 299,373.67 and 140,565.26

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Solution

The fourth proportional to 216,987.58, 299,373.67 and 140,565.26 is: 193,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,987.58 : 299,373.67 = 140,565.26 : x
  2. Step 2: Convert to fraction form
    216,987.58/299,373.67 = 140,565.26/x
  3. Step 3: Cross multiply
    216,987.58x = 299,373.67 × 140,565.26
  4. Step 4: Simplify right side
    216,987.58x = 42,081,537,057.88
  5. Step 5: Solve for x
    x = 42,081,537,057.88/216,987.58
  6. Step 6: Final answer
    x = 193,935.23

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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.