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Finding the Fourth Proportional to 508,923.93, 763,161.70 and 239,128.83

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Solution

The fourth proportional to 508,923.93, 763,161.70 and 239,128.83 is: 358,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,923.93 : 763,161.70 = 239,128.83 : x
  2. Step 2: Convert to fraction form
    508,923.93/763,161.70 = 239,128.83/x
  3. Step 3: Cross multiply
    508,923.93x = 763,161.70 × 239,128.83
  4. Step 4: Simplify right side
    508,923.93x = 182,493,964,421.81
  5. Step 5: Solve for x
    x = 182,493,964,421.81/508,923.93
  6. Step 6: Final answer
    x = 358,587.90

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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.