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Finding the Fourth Proportional to 418,616.10, 577,678.23 and 237,345.39

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Solution

The fourth proportional to 418,616.10, 577,678.23 and 237,345.39 is: 327,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,616.10 : 577,678.23 = 237,345.39 : x
  2. Step 2: Convert to fraction form
    418,616.10/577,678.23 = 237,345.39/x
  3. Step 3: Cross multiply
    418,616.10x = 577,678.23 × 237,345.39
  4. Step 4: Simplify right side
    418,616.10x = 137,109,264,793.86
  5. Step 5: Solve for x
    x = 137,109,264,793.86/418,616.10
  6. Step 6: Final answer
    x = 327,529.84

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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.