Home / 543,525.09-815,328.64-144,154.28

Finding the Fourth Proportional to 543,525.09, 815,328.64 and 144,154.28

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Solution

The fourth proportional to 543,525.09, 815,328.64 and 144,154.28 is: 216,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,525.09 : 815,328.64 = 144,154.28 : x
  2. Step 2: Convert to fraction form
    543,525.09/815,328.64 = 144,154.28/x
  3. Step 3: Cross multiply
    543,525.09x = 815,328.64 × 144,154.28
  4. Step 4: Simplify right side
    543,525.09x = 117,533,114,470.23
  5. Step 5: Solve for x
    x = 117,533,114,470.23/543,525.09
  6. Step 6: Final answer
    x = 216,242.30

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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.