Home / 288,554.36-432,853.27-86,134.46

Finding the Fourth Proportional to 288,554.36, 432,853.27 and 86,134.46

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Solution

The fourth proportional to 288,554.36, 432,853.27 and 86,134.46 is: 129,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,554.36 : 432,853.27 = 86,134.46 : x
  2. Step 2: Convert to fraction form
    288,554.36/432,853.27 = 86,134.46/x
  3. Step 3: Cross multiply
    288,554.36x = 432,853.27 × 86,134.46
  4. Step 4: Simplify right side
    288,554.36x = 37,283,584,488.35
  5. Step 5: Solve for x
    x = 37,283,584,488.35/288,554.36
  6. Step 6: Final answer
    x = 129,208.18

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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.