Home / 315,788.45-435,788.17-170,594.28

Finding the Fourth Proportional to 315,788.45, 435,788.17 and 170,594.28

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Solution

The fourth proportional to 315,788.45, 435,788.17 and 170,594.28 is: 235,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,788.45 : 435,788.17 = 170,594.28 : x
  2. Step 2: Convert to fraction form
    315,788.45/435,788.17 = 170,594.28/x
  3. Step 3: Cross multiply
    315,788.45x = 435,788.17 × 170,594.28
  4. Step 4: Simplify right side
    315,788.45x = 74,342,968,667.18
  5. Step 5: Solve for x
    x = 74,342,968,667.18/315,788.45
  6. Step 6: Final answer
    x = 235,420.17

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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.