Home / 315,219.93-435,002.06-171,979.53

Finding the Fourth Proportional to 315,219.93, 435,002.06 and 171,979.53

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Solution

The fourth proportional to 315,219.93, 435,002.06 and 171,979.53 is: 237,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,219.93 : 435,002.06 = 171,979.53 : x
  2. Step 2: Convert to fraction form
    315,219.93/435,002.06 = 171,979.53/x
  3. Step 3: Cross multiply
    315,219.93x = 435,002.06 × 171,979.53
  4. Step 4: Simplify right side
    315,219.93x = 74,811,448,967.93
  5. Step 5: Solve for x
    x = 74,811,448,967.93/315,219.93
  6. Step 6: Final answer
    x = 237,330.96

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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.