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Finding the Fourth Proportional to 284,674.05, 427,129.80 and 124,864.86

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Solution

The fourth proportional to 284,674.05, 427,129.80 and 124,864.86 is: 187,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,674.05 : 427,129.80 = 124,864.86 : x
  2. Step 2: Convert to fraction form
    284,674.05/427,129.80 = 124,864.86/x
  3. Step 3: Cross multiply
    284,674.05x = 427,129.80 × 124,864.86
  4. Step 4: Simplify right side
    284,674.05x = 53,333,502,678.83
  5. Step 5: Solve for x
    x = 53,333,502,678.83/284,674.05
  6. Step 6: Final answer
    x = 187,349.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.