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Finding the Fourth Proportional to 376,953.65, 520,271.70 and 223,962.40

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Solution

The fourth proportional to 376,953.65, 520,271.70 and 223,962.40 is: 309,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,953.65 : 520,271.70 = 223,962.40 : x
  2. Step 2: Convert to fraction form
    376,953.65/520,271.70 = 223,962.40/x
  3. Step 3: Cross multiply
    376,953.65x = 520,271.70 × 223,962.40
  4. Step 4: Simplify right side
    376,953.65x = 116,521,298,584.08
  5. Step 5: Solve for x
    x = 116,521,298,584.08/376,953.65
  6. Step 6: Final answer
    x = 309,113.07

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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.