Home / 316,955.08-475,433.30-80,316.21

Finding the Fourth Proportional to 316,955.08, 475,433.30 and 80,316.21

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Solution

The fourth proportional to 316,955.08, 475,433.30 and 80,316.21 is: 120,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,955.08 : 475,433.30 = 80,316.21 : x
  2. Step 2: Convert to fraction form
    316,955.08/475,433.30 = 80,316.21/x
  3. Step 3: Cross multiply
    316,955.08x = 475,433.30 × 80,316.21
  4. Step 4: Simplify right side
    316,955.08x = 38,184,999,621.37
  5. Step 5: Solve for x
    x = 38,184,999,621.37/316,955.08
  6. Step 6: Final answer
    x = 120,474.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.