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Finding the Fourth Proportional to 249,364.80, 374,047.20 and 221,808.60

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Solution

The fourth proportional to 249,364.80, 374,047.20 and 221,808.60 is: 332,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,364.80 : 374,047.20 = 221,808.60 : x
  2. Step 2: Convert to fraction form
    249,364.80/374,047.20 = 221,808.60/x
  3. Step 3: Cross multiply
    249,364.80x = 374,047.20 × 221,808.60
  4. Step 4: Simplify right side
    249,364.80x = 82,966,885,765.92
  5. Step 5: Solve for x
    x = 82,966,885,765.92/249,364.80
  6. Step 6: Final answer
    x = 332,712.90

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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.