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Finding the Fourth Proportional to 253,920.30, 380,977.65 and 249,935.10

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Solution

The fourth proportional to 253,920.30, 380,977.65 and 249,935.10 is: 374,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,920.30 : 380,977.65 = 249,935.10 : x
  2. Step 2: Convert to fraction form
    253,920.30/380,977.65 = 249,935.10/x
  3. Step 3: Cross multiply
    253,920.30x = 380,977.65 × 249,935.10
  4. Step 4: Simplify right side
    253,920.30x = 95,219,687,050.52
  5. Step 5: Solve for x
    x = 95,219,687,050.52/253,920.30
  6. Step 6: Final answer
    x = 374,998.32

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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.