Home / 249,610.60-345,126.18-218,117.80

Finding the Fourth Proportional to 249,610.60, 345,126.18 and 218,117.80

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Solution

The fourth proportional to 249,610.60, 345,126.18 and 218,117.80 is: 301,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,610.60 : 345,126.18 = 218,117.80 : x
  2. Step 2: Convert to fraction form
    249,610.60/345,126.18 = 218,117.80/x
  3. Step 3: Cross multiply
    249,610.60x = 345,126.18 × 218,117.80
  4. Step 4: Simplify right side
    249,610.60x = 75,278,163,104.00
  5. Step 5: Solve for x
    x = 75,278,163,104.00/249,610.60
  6. Step 6: Final answer
    x = 301,582.40

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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.