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Finding the Fourth Proportional to 210,030.42, 289,859.21 and 119,414.82

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Solution

The fourth proportional to 210,030.42, 289,859.21 and 119,414.82 is: 164,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,030.42 : 289,859.21 = 119,414.82 : x
  2. Step 2: Convert to fraction form
    210,030.42/289,859.21 = 119,414.82/x
  3. Step 3: Cross multiply
    210,030.42x = 289,859.21 × 119,414.82
  4. Step 4: Simplify right side
    210,030.42x = 34,613,485,387.49
  5. Step 5: Solve for x
    x = 34,613,485,387.49/210,030.42
  6. Step 6: Final answer
    x = 164,802.25

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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.