Home / 315,328.24-435,154.20-172,091.50

Finding the Fourth Proportional to 315,328.24, 435,154.20 and 172,091.50

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Solution

The fourth proportional to 315,328.24, 435,154.20 and 172,091.50 is: 237,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,328.24 : 435,154.20 = 172,091.50 : x
  2. Step 2: Convert to fraction form
    315,328.24/435,154.20 = 172,091.50/x
  3. Step 3: Cross multiply
    315,328.24x = 435,154.20 × 172,091.50
  4. Step 4: Simplify right side
    315,328.24x = 74,886,339,009.30
  5. Step 5: Solve for x
    x = 74,886,339,009.30/315,328.24
  6. Step 6: Final answer
    x = 237,486.94

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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.