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Finding the Fourth Proportional to 249,640.80, 374,206.05 and 123,086.40

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Solution

The fourth proportional to 249,640.80, 374,206.05 and 123,086.40 is: 184,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,640.80 : 374,206.05 = 123,086.40 : x
  2. Step 2: Convert to fraction form
    249,640.80/374,206.05 = 123,086.40/x
  3. Step 3: Cross multiply
    249,640.80x = 374,206.05 × 123,086.40
  4. Step 4: Simplify right side
    249,640.80x = 46,059,675,552.72
  5. Step 5: Solve for x
    x = 46,059,675,552.72/249,640.80
  6. Step 6: Final answer
    x = 184,503.80

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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.