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Finding the Fourth Proportional to 253,910.80, 380,963.40 and 249,925.60

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Solution

The fourth proportional to 253,910.80, 380,963.40 and 249,925.60 is: 374,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,910.80 : 380,963.40 = 249,925.60 : x
  2. Step 2: Convert to fraction form
    253,910.80/380,963.40 = 249,925.60/x
  3. Step 3: Cross multiply
    253,910.80x = 380,963.40 × 249,925.60
  4. Step 4: Simplify right side
    253,910.80x = 95,212,506,323.04
  5. Step 5: Solve for x
    x = 95,212,506,323.04/253,910.80
  6. Step 6: Final answer
    x = 374,984.07

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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.