Home / 210,330.72-290,281.86-119,708.73

Finding the Fourth Proportional to 210,330.72, 290,281.86 and 119,708.73

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Solution

The fourth proportional to 210,330.72, 290,281.86 and 119,708.73 is: 165,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,330.72 : 290,281.86 = 119,708.73 : x
  2. Step 2: Convert to fraction form
    210,330.72/290,281.86 = 119,708.73/x
  3. Step 3: Cross multiply
    210,330.72x = 290,281.86 × 119,708.73
  4. Step 4: Simplify right side
    210,330.72x = 34,749,272,802.64
  5. Step 5: Solve for x
    x = 34,749,272,802.64/210,330.72
  6. Step 6: Final answer
    x = 165,212.54

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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.