Home / 288,390.27-432,351.21-120,036.60

Finding the Fourth Proportional to 288,390.27, 432,351.21 and 120,036.60

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Solution

The fourth proportional to 288,390.27, 432,351.21 and 120,036.60 is: 179,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,390.27 : 432,351.21 = 120,036.60 : x
  2. Step 2: Convert to fraction form
    288,390.27/432,351.21 = 120,036.60/x
  3. Step 3: Cross multiply
    288,390.27x = 432,351.21 × 120,036.60
  4. Step 4: Simplify right side
    288,390.27x = 51,897,969,254.29
  5. Step 5: Solve for x
    x = 51,897,969,254.29/288,390.27
  6. Step 6: Final answer
    x = 179,957.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.