Home / 307,743.40-424,756.75-180,460.00

Finding the Fourth Proportional to 307,743.40, 424,756.75 and 180,460.00

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Solution

The fourth proportional to 307,743.40, 424,756.75 and 180,460.00 is: 249,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,743.40 : 424,756.75 = 180,460.00 : x
  2. Step 2: Convert to fraction form
    307,743.40/424,756.75 = 180,460.00/x
  3. Step 3: Cross multiply
    307,743.40x = 424,756.75 × 180,460.00
  4. Step 4: Simplify right side
    307,743.40x = 76,651,603,523.16
  5. Step 5: Solve for x
    x = 76,651,603,523.16/307,743.40
  6. Step 6: Final answer
    x = 249,076.35

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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.