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Finding the Fourth Proportional to 210,401.52, 290,315.60 and 119,752.12

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Solution

The fourth proportional to 210,401.52, 290,315.60 and 119,752.12 is: 165,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,401.52 : 290,315.60 = 119,752.12 : x
  2. Step 2: Convert to fraction form
    210,401.52/290,315.60 = 119,752.12/x
  3. Step 3: Cross multiply
    210,401.52x = 290,315.60 × 119,752.12
  4. Step 4: Simplify right side
    210,401.52x = 34,765,908,569.07
  5. Step 5: Solve for x
    x = 34,765,908,569.07/210,401.52
  6. Step 6: Final answer
    x = 165,236.01

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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.