Home / 278,882.08-384,918.18-183,397.72

Finding the Fourth Proportional to 278,882.08, 384,918.18 and 183,397.72

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Solution

The fourth proportional to 278,882.08, 384,918.18 and 183,397.72 is: 253,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,882.08 : 384,918.18 = 183,397.72 : x
  2. Step 2: Convert to fraction form
    278,882.08/384,918.18 = 183,397.72/x
  3. Step 3: Cross multiply
    278,882.08x = 384,918.18 × 183,397.72
  4. Step 4: Simplify right side
    278,882.08x = 70,593,116,598.55
  5. Step 5: Solve for x
    x = 70,593,116,598.55/278,882.08
  6. Step 6: Final answer
    x = 253,128.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.