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Finding the Fourth Proportional to 423,036.03, 634,238.45 and 254,516.87

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Solution

The fourth proportional to 423,036.03, 634,238.45 and 254,516.87 is: 381,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,036.03 : 634,238.45 = 254,516.87 : x
  2. Step 2: Convert to fraction form
    423,036.03/634,238.45 = 254,516.87/x
  3. Step 3: Cross multiply
    423,036.03x = 634,238.45 × 254,516.87
  4. Step 4: Simplify right side
    423,036.03x = 161,424,385,127.65
  5. Step 5: Solve for x
    x = 161,424,385,127.65/423,036.03
  6. Step 6: Final answer
    x = 381,585.43

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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.