Home / 210,390.38-290,339.79-114,897.08

Finding the Fourth Proportional to 210,390.38, 290,339.79 and 114,897.08

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Solution

The fourth proportional to 210,390.38, 290,339.79 and 114,897.08 is: 158,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,390.38 : 290,339.79 = 114,897.08 : x
  2. Step 2: Convert to fraction form
    210,390.38/290,339.79 = 114,897.08/x
  3. Step 3: Cross multiply
    210,390.38x = 290,339.79 × 114,897.08
  4. Step 4: Simplify right side
    210,390.38x = 33,359,192,627.11
  5. Step 5: Solve for x
    x = 33,359,192,627.11/210,390.38
  6. Step 6: Final answer
    x = 158,558.55

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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.