Home / 216,943.20-299,417.45-148,904.28

Finding the Fourth Proportional to 216,943.20, 299,417.45 and 148,904.28

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Solution

The fourth proportional to 216,943.20, 299,417.45 and 148,904.28 is: 205,512.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,943.20 : 299,417.45 = 148,904.28 : x
  2. Step 2: Convert to fraction form
    216,943.20/299,417.45 = 148,904.28/x
  3. Step 3: Cross multiply
    216,943.20x = 299,417.45 × 148,904.28
  4. Step 4: Simplify right side
    216,943.20x = 44,584,539,067.16
  5. Step 5: Solve for x
    x = 44,584,539,067.16/216,943.20
  6. Step 6: Final answer
    x = 205,512.50

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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.