Home / 314,720.08-434,370-185,650.72

Finding the Fourth Proportional to 314,720.08, 434,370 and 185,650.72

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Solution

The fourth proportional to 314,720.08, 434,370 and 185,650.72 is: 256,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,720.08 : 434,370 = 185,650.72 : x
  2. Step 2: Convert to fraction form
    314,720.08/434,370 = 185,650.72/x
  3. Step 3: Cross multiply
    314,720.08x = 434,370 × 185,650.72
  4. Step 4: Simplify right side
    314,720.08x = 80,641,103,246.40
  5. Step 5: Solve for x
    x = 80,641,103,246.40/314,720.08
  6. Step 6: Final answer
    x = 256,231.20

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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.