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Finding the Fourth Proportional to 218,712.02, 299,854.14 and 214,726.21

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Solution

The fourth proportional to 218,712.02, 299,854.14 and 214,726.21 is: 294,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,712.02 : 299,854.14 = 214,726.21 : x
  2. Step 2: Convert to fraction form
    218,712.02/299,854.14 = 214,726.21/x
  3. Step 3: Cross multiply
    218,712.02x = 299,854.14 × 214,726.21
  4. Step 4: Simplify right side
    218,712.02x = 64,386,541,480.15
  5. Step 5: Solve for x
    x = 64,386,541,480.15/218,712.02
  6. Step 6: Final answer
    x = 294,389.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.