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Finding the Fourth Proportional to 210,043.71, 289,848.78 and 119,387.08

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Solution

The fourth proportional to 210,043.71, 289,848.78 and 119,387.08 is: 164,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,043.71 : 289,848.78 = 119,387.08 : x
  2. Step 2: Convert to fraction form
    210,043.71/289,848.78 = 119,387.08/x
  3. Step 3: Cross multiply
    210,043.71x = 289,848.78 × 119,387.08
  4. Step 4: Simplify right side
    210,043.71x = 34,604,199,485.76
  5. Step 5: Solve for x
    x = 34,604,199,485.76/210,043.71
  6. Step 6: Final answer
    x = 164,747.61

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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.