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Finding the Fourth Proportional to 280,158.96, 418,053.33 and 249,965.64

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Solution

The fourth proportional to 280,158.96, 418,053.33 and 249,965.64 is: 372,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,158.96 : 418,053.33 = 249,965.64 : x
  2. Step 2: Convert to fraction form
    280,158.96/418,053.33 = 249,965.64/x
  3. Step 3: Cross multiply
    280,158.96x = 418,053.33 × 249,965.64
  4. Step 4: Simplify right side
    280,158.96x = 104,498,968,187.58
  5. Step 5: Solve for x
    x = 104,498,968,187.58/280,158.96
  6. Step 6: Final answer
    x = 372,998.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.