Home / 315,137.04-434,895-171,902.16

Finding the Fourth Proportional to 315,137.04, 434,895 and 171,902.16

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Solution

The fourth proportional to 315,137.04, 434,895 and 171,902.16 is: 237,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,137.04 : 434,895 = 171,902.16 : x
  2. Step 2: Convert to fraction form
    315,137.04/434,895 = 171,902.16/x
  3. Step 3: Cross multiply
    315,137.04x = 434,895 × 171,902.16
  4. Step 4: Simplify right side
    315,137.04x = 74,759,389,873.20
  5. Step 5: Solve for x
    x = 74,759,389,873.20/315,137.04
  6. Step 6: Final answer
    x = 237,228.19

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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.