Home / 216,430.08-324,679.98-66,670.32

Finding the Fourth Proportional to 216,430.08, 324,679.98 and 66,670.32

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Solution

The fourth proportional to 216,430.08, 324,679.98 and 66,670.32 is: 100,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,430.08 : 324,679.98 = 66,670.32 : x
  2. Step 2: Convert to fraction form
    216,430.08/324,679.98 = 66,670.32/x
  3. Step 3: Cross multiply
    216,430.08x = 324,679.98 × 66,670.32
  4. Step 4: Simplify right side
    216,430.08x = 21,646,518,164.19
  5. Step 5: Solve for x
    x = 21,646,518,164.19/216,430.08
  6. Step 6: Final answer
    x = 100,016.22

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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.