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Finding the Fourth Proportional to 452,897.72, 679,191.06 and 172,495.16

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Solution

The fourth proportional to 452,897.72, 679,191.06 and 172,495.16 is: 258,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,897.72 : 679,191.06 = 172,495.16 : x
  2. Step 2: Convert to fraction form
    452,897.72/679,191.06 = 172,495.16/x
  3. Step 3: Cross multiply
    452,897.72x = 679,191.06 × 172,495.16
  4. Step 4: Simplify right side
    452,897.72x = 117,157,170,565.27
  5. Step 5: Solve for x
    x = 117,157,170,565.27/452,897.72
  6. Step 6: Final answer
    x = 258,683.51

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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.