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Finding the Fourth Proportional to 286,794.72, 428,081.04 and 249,616.80

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Solution

The fourth proportional to 286,794.72, 428,081.04 and 249,616.80 is: 372,587.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,794.72 : 428,081.04 = 249,616.80 : x
  2. Step 2: Convert to fraction form
    286,794.72/428,081.04 = 249,616.80/x
  3. Step 3: Cross multiply
    286,794.72x = 428,081.04 × 249,616.80
  4. Step 4: Simplify right side
    286,794.72x = 106,856,219,345.47
  5. Step 5: Solve for x
    x = 106,856,219,345.47/286,794.72
  6. Step 6: Final answer
    x = 372,587.82

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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.