Home / 315,824.02-435,842.85-172,590.10

Finding the Fourth Proportional to 315,824.02, 435,842.85 and 172,590.10

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Solution

The fourth proportional to 315,824.02, 435,842.85 and 172,590.10 is: 238,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,824.02 : 435,842.85 = 172,590.10 : x
  2. Step 2: Convert to fraction form
    315,824.02/435,842.85 = 172,590.10/x
  3. Step 3: Cross multiply
    315,824.02x = 435,842.85 × 172,590.10
  4. Step 4: Simplify right side
    315,824.02x = 75,222,161,065.79
  5. Step 5: Solve for x
    x = 75,222,161,065.79/315,824.02
  6. Step 6: Final answer
    x = 238,177.45

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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.