Home / 249,752.20-374,628.30-81,288.40

Finding the Fourth Proportional to 249,752.20, 374,628.30 and 81,288.40

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Solution

The fourth proportional to 249,752.20, 374,628.30 and 81,288.40 is: 121,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,752.20 : 374,628.30 = 81,288.40 : x
  2. Step 2: Convert to fraction form
    249,752.20/374,628.30 = 81,288.40/x
  3. Step 3: Cross multiply
    249,752.20x = 374,628.30 × 81,288.40
  4. Step 4: Simplify right side
    249,752.20x = 30,452,935,101.72
  5. Step 5: Solve for x
    x = 30,452,935,101.72/249,752.20
  6. Step 6: Final answer
    x = 121,932.60

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1.5x scale

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.