Home / 306,006.26-455,933.75-288,817.11

Finding the Fourth Proportional to 306,006.26, 455,933.75 and 288,817.11

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Solution

The fourth proportional to 306,006.26, 455,933.75 and 288,817.11 is: 430,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,006.26 : 455,933.75 = 288,817.11 : x
  2. Step 2: Convert to fraction form
    306,006.26/455,933.75 = 288,817.11/x
  3. Step 3: Cross multiply
    306,006.26x = 455,933.75 × 288,817.11
  4. Step 4: Simplify right side
    306,006.26x = 131,681,466,582.38
  5. Step 5: Solve for x
    x = 131,681,466,582.38/306,006.26
  6. Step 6: Final answer
    x = 430,322.79

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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.