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Finding the Fourth Proportional to 210,237.76, 290,125.84 and 114,743.68

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Solution

The fourth proportional to 210,237.76, 290,125.84 and 114,743.68 is: 158,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,237.76 : 290,125.84 = 114,743.68 : x
  2. Step 2: Convert to fraction form
    210,237.76/290,125.84 = 114,743.68/x
  3. Step 3: Cross multiply
    210,237.76x = 290,125.84 × 114,743.68
  4. Step 4: Simplify right side
    210,237.76x = 33,290,106,544.69
  5. Step 5: Solve for x
    x = 33,290,106,544.69/210,237.76
  6. Step 6: Final answer
    x = 158,345.04

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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.