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Finding the Fourth Proportional to 387,668.94, 534,904.74 and 226,492.85

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Solution

The fourth proportional to 387,668.94, 534,904.74 and 226,492.85 is: 312,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,668.94 : 534,904.74 = 226,492.85 : x
  2. Step 2: Convert to fraction form
    387,668.94/534,904.74 = 226,492.85/x
  3. Step 3: Cross multiply
    387,668.94x = 534,904.74 × 226,492.85
  4. Step 4: Simplify right side
    387,668.94x = 121,152,095,980.31
  5. Step 5: Solve for x
    x = 121,152,095,980.31/387,668.94
  6. Step 6: Final answer
    x = 312,514.33

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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.