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Finding the Fourth Proportional to 369,360.48, 509,719.20 and 216,425.88

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Solution

The fourth proportional to 369,360.48, 509,719.20 and 216,425.88 is: 298,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,360.48 : 509,719.20 = 216,425.88 : x
  2. Step 2: Convert to fraction form
    369,360.48/509,719.20 = 216,425.88/x
  3. Step 3: Cross multiply
    369,360.48x = 509,719.20 × 216,425.88
  4. Step 4: Simplify right side
    369,360.48x = 110,316,426,412.90
  5. Step 5: Solve for x
    x = 110,316,426,412.90/369,360.48
  6. Step 6: Final answer
    x = 298,668.73

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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.