Home / 380,747.30-525,670.11-245,017.08

Finding the Fourth Proportional to 380,747.30, 525,670.11 and 245,017.08

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Solution

The fourth proportional to 380,747.30, 525,670.11 and 245,017.08 is: 338,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,747.30 : 525,670.11 = 245,017.08 : x
  2. Step 2: Convert to fraction form
    380,747.30/525,670.11 = 245,017.08/x
  3. Step 3: Cross multiply
    380,747.30x = 525,670.11 × 245,017.08
  4. Step 4: Simplify right side
    380,747.30x = 128,798,155,395.48
  5. Step 5: Solve for x
    x = 128,798,155,395.48/380,747.30
  6. Step 6: Final answer
    x = 338,277.27

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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.