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Finding the Fourth Proportional to 375,989.84, 518,956.44 and 255,332.24

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Solution

The fourth proportional to 375,989.84, 518,956.44 and 255,332.24 is: 352,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,989.84 : 518,956.44 = 255,332.24 : x
  2. Step 2: Convert to fraction form
    375,989.84/518,956.44 = 255,332.24/x
  3. Step 3: Cross multiply
    375,989.84x = 518,956.44 × 255,332.24
  4. Step 4: Simplify right side
    375,989.84x = 132,506,310,287.63
  5. Step 5: Solve for x
    x = 132,506,310,287.63/375,989.84
  6. Step 6: Final answer
    x = 352,419.92

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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.