Home / 210,214.28-290,102.49-119,567.91

Finding the Fourth Proportional to 210,214.28, 290,102.49 and 119,567.91

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Solution

The fourth proportional to 210,214.28, 290,102.49 and 119,567.91 is: 165,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,214.28 : 290,102.49 = 119,567.91 : x
  2. Step 2: Convert to fraction form
    210,214.28/290,102.49 = 119,567.91/x
  3. Step 3: Cross multiply
    210,214.28x = 290,102.49 × 119,567.91
  4. Step 4: Simplify right side
    210,214.28x = 34,686,948,415.10
  5. Step 5: Solve for x
    x = 34,686,948,415.10/210,214.28
  6. Step 6: Final answer
    x = 165,007.58

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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.