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Finding the Fourth Proportional to 210,479.00, 290,428.98 and 119,838.78

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Solution

The fourth proportional to 210,479.00, 290,428.98 and 119,838.78 is: 165,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,479.00 : 290,428.98 = 119,838.78 : x
  2. Step 2: Convert to fraction form
    210,479.00/290,428.98 = 119,838.78/x
  3. Step 3: Cross multiply
    210,479.00x = 290,428.98 × 119,838.78
  4. Step 4: Simplify right side
    210,479.00x = 34,804,654,639.84
  5. Step 5: Solve for x
    x = 34,804,654,639.84/210,479.00
  6. Step 6: Final answer
    x = 165,359.28

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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.