Home / 315,543.24-435,467.38-172,316.60

Finding the Fourth Proportional to 315,543.24, 435,467.38 and 172,316.60

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Solution

The fourth proportional to 315,543.24, 435,467.38 and 172,316.60 is: 237,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,543.24 : 435,467.38 = 172,316.60 : x
  2. Step 2: Convert to fraction form
    315,543.24/435,467.38 = 172,316.60/x
  3. Step 3: Cross multiply
    315,543.24x = 435,467.38 × 172,316.60
  4. Step 4: Simplify right side
    315,543.24x = 75,038,258,332.51
  5. Step 5: Solve for x
    x = 75,038,258,332.51/315,543.24
  6. Step 6: Final answer
    x = 237,806.58

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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.