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Finding the Fourth Proportional to 508,878.72, 763,456.32 and 153,904.32

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Solution

The fourth proportional to 508,878.72, 763,456.32 and 153,904.32 is: 230,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,878.72 : 763,456.32 = 153,904.32 : x
  2. Step 2: Convert to fraction form
    508,878.72/763,456.32 = 153,904.32/x
  3. Step 3: Cross multiply
    508,878.72x = 763,456.32 × 153,904.32
  4. Step 4: Simplify right side
    508,878.72x = 117,499,225,779.30
  5. Step 5: Solve for x
    x = 117,499,225,779.30/508,878.72
  6. Step 6: Final answer
    x = 230,898.29

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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.