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Finding the Fourth Proportional to 408,389.61, 563,495.08 and 238,590.93

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Solution

The fourth proportional to 408,389.61, 563,495.08 and 238,590.93 is: 329,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,389.61 : 563,495.08 = 238,590.93 : x
  2. Step 2: Convert to fraction form
    408,389.61/563,495.08 = 238,590.93/x
  3. Step 3: Cross multiply
    408,389.61x = 563,495.08 × 238,590.93
  4. Step 4: Simplify right side
    408,389.61x = 134,444,817,151.61
  5. Step 5: Solve for x
    x = 134,444,817,151.61/408,389.61
  6. Step 6: Final answer
    x = 329,207.24

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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.