Home / 217,008.84-299,472.66-121,515.24

Finding the Fourth Proportional to 217,008.84, 299,472.66 and 121,515.24

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Solution

The fourth proportional to 217,008.84, 299,472.66 and 121,515.24 is: 167,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,008.84 : 299,472.66 = 121,515.24 : x
  2. Step 2: Convert to fraction form
    217,008.84/299,472.66 = 121,515.24/x
  3. Step 3: Cross multiply
    217,008.84x = 299,472.66 × 121,515.24
  4. Step 4: Simplify right side
    217,008.84x = 36,390,492,153.34
  5. Step 5: Solve for x
    x = 36,390,492,153.34/217,008.84
  6. Step 6: Final answer
    x = 167,691.29

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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.