Home / 315,541.24-435,464.62-172,314.60

Finding the Fourth Proportional to 315,541.24, 435,464.62 and 172,314.60

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Solution

The fourth proportional to 315,541.24, 435,464.62 and 172,314.60 is: 237,803.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,541.24 : 435,464.62 = 172,314.60 : x
  2. Step 2: Convert to fraction form
    315,541.24/435,464.62 = 172,314.60/x
  3. Step 3: Cross multiply
    315,541.24x = 435,464.62 × 172,314.60
  4. Step 4: Simplify right side
    315,541.24x = 75,036,911,809.45
  5. Step 5: Solve for x
    x = 75,036,911,809.45/315,541.24
  6. Step 6: Final answer
    x = 237,803.82

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1.5x scale

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.