Home / 290,688.02-436,032.23-80,326.16

Finding the Fourth Proportional to 290,688.02, 436,032.23 and 80,326.16

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Solution

The fourth proportional to 290,688.02, 436,032.23 and 80,326.16 is: 120,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,688.02 : 436,032.23 = 80,326.16 : x
  2. Step 2: Convert to fraction form
    290,688.02/436,032.23 = 80,326.16/x
  3. Step 3: Cross multiply
    290,688.02x = 436,032.23 × 80,326.16
  4. Step 4: Simplify right side
    290,688.02x = 35,024,794,672.14
  5. Step 5: Solve for x
    x = 35,024,794,672.14/290,688.02
  6. Step 6: Final answer
    x = 120,489.30

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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.