Home / 401,640.48-602,465.04-121,160.16

Finding the Fourth Proportional to 401,640.48, 602,465.04 and 121,160.16

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Solution

The fourth proportional to 401,640.48, 602,465.04 and 121,160.16 is: 181,741.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,640.48 : 602,465.04 = 121,160.16 : x
  2. Step 2: Convert to fraction form
    401,640.48/602,465.04 = 121,160.16/x
  3. Step 3: Cross multiply
    401,640.48x = 602,465.04 × 121,160.16
  4. Step 4: Simplify right side
    401,640.48x = 72,994,760,640.81
  5. Step 5: Solve for x
    x = 72,994,760,640.81/401,640.48
  6. Step 6: Final answer
    x = 181,741.54

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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.