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Finding the Fourth Proportional to 401,852.78, 602,779.15 and 121,370.03

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Solution

The fourth proportional to 401,852.78, 602,779.15 and 121,370.03 is: 182,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,852.78 : 602,779.15 = 121,370.03 : x
  2. Step 2: Convert to fraction form
    401,852.78/602,779.15 = 121,370.03/x
  3. Step 3: Cross multiply
    401,852.78x = 602,779.15 × 121,370.03
  4. Step 4: Simplify right side
    401,852.78x = 73,159,323,518.87
  5. Step 5: Solve for x
    x = 73,159,323,518.87/401,852.78
  6. Step 6: Final answer
    x = 182,055.04

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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.